1392944 has 20 divisors (see below), whose sum is σ = 3084624. Its totient is φ = 596928.

The previous prime is 1392943. The next prime is 1392953. The reversal of 1392944 is 4492931.

It is a happy number.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1392944.

It is not an unprimeable number, because it can be changed into a prime (1392943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6107 + ... + 6330.

2^1392944 is an apocalyptic number.

1392944 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1392944 is an abundant number, since it is smaller than the sum of its proper divisors (1691680).

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

1392944 is a wasteful number, since it uses less digits than its factorization.

1392944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12452 (or 12446 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 1392944 is about 1180.2304859645. The cubic root of 1392944 is about 111.6806378401.

The spelling of 1392944 in words is "one million, three hundred ninety-two thousand, nine hundred forty-four".