1422140 has 24 divisors (see below), whose sum is σ = 3009552. Its totient is φ = 564480.

The previous prime is 1422133. The next prime is 1422163. The reversal of 1422140 is 412241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4052 + ... + 4388.

It is an arithmetic number, because the mean of its divisors is an integer number (125398).

2^1422140 is an apocalyptic number.

1422140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1422140 is an abundant number, since it is smaller than the sum of its proper divisors (1587412).

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

1422140 is a wasteful number, since it uses less digits than its factorization.

1422140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557 (or 555 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1422140 is about 1192.5351147870. The cubic root of 1422140 is about 112.4555215118.

Adding to 1422140 its reverse (412241), we get a palindrome (1834381).

The spelling of 1422140 in words is "one million, four hundred twenty-two thousand, one hundred forty".