1392939 has 24 divisors (see below), whose sum is σ = 2134080. Its totient is φ = 874368.

The previous prime is 1392901. The next prime is 1392943. The reversal of 1392939 is 9392931.

It is not a de Polignac number, because 1392939 - 2¹¹ = 1390891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1392959) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15607 + ... + 15695.

It is an arithmetic number, because the mean of its divisors is an integer number (88920).

2^1392939 is an apocalyptic number.

1392939 is a deficient number, since it is larger than the sum of its proper divisors (741141).

1392939 is a wasteful number, since it uses less digits than its factorization.

1392939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 176 counting only the distinct ones).

The product of its digits is 13122, while the sum is 36.

The square root of 1392939 is about 1180.2283677323. The cubic root of 1392939 is about 111.6805042133.

The spelling of 1392939 in words is "one million, three hundred ninety-two thousand, nine hundred thirty-nine".