1422630 has 64 divisors (see below), whose sum is σ = 4147200. Its totient is φ = 344160.

The previous prime is 1422601. The next prime is 1422637. The reversal of 1422630 is 362241.

It is a happy number.

1422630 is a `hidden beast` number, since 14 + 22 + 630 = 666.

It is a super-2 number, since 2×1422630² = 4047752233800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1422637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2731 + ... + 3209.

It is an arithmetic number, because the mean of its divisors is an integer number (64800).

2^1422630 is an apocalyptic number.

1422630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1422630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2073600).

1422630 is an abundant number, since it is smaller than the sum of its proper divisors (2724570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1422630 is a wasteful number, since it uses less digits than its factorization.

1422630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1422630 is about 1192.7405417776. The cubic root of 1422630 is about 112.4684355892.

Adding to 1422630 its reverse (362241), we get a palindrome (1784871).

It can be divided in two parts, 142 and 2630, that added together give a palindrome (2772).

The spelling of 1422630 in words is "one million, four hundred twenty-two thousand, six hundred thirty".