1423630 has 32 divisors (see below), whose sum is σ = 2830464. Its totient is φ = 512256.

The previous prime is 1423627. The next prime is 1423637. The reversal of 1423630 is 363241.

It is a junction number, because it is equal to n+sod(n) for n = 1423598 and 1423607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423637) 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 15 ways as a sum of consecutive naturals, for example, 5994 + ... + 6226.

It is an arithmetic number, because the mean of its divisors is an integer number (88452).

2^1423630 is an apocalyptic number.

1423630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1423630 is a deficient number, since it is larger than the sum of its proper divisors (1406834).

1423630 is a wasteful number, since it uses less digits than its factorization.

1423630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1423630 is about 1193.1596707901. The cubic root of 1423630 is about 112.4947816510.

Adding to 1423630 its reverse (363241), we get a palindrome (1786871).

The spelling of 1423630 in words is "one million, four hundred twenty-three thousand, six hundred thirty".