1392820974 has 32 divisors (see below), whose sum is σ = 3101571840. Its totient is φ = 463311576.

The previous prime is 1392820967. The next prime is 1392820981. The reversal of 1392820974 is 4790282931.

It is an interprime number because it is at equal distance from previous prime (1392820967) and next prime (1392820981).

It is a super-2 number, since 2×1392820974² = 3879900531228617352, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184 + ... + 52779.

It is an arithmetic number, because the mean of its divisors is an integer number (96924120).

Almost surely, 2^1392820974 is an apocalyptic number.

1392820974 is an abundant number, since it is smaller than the sum of its proper divisors (1708750866).

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

1392820974 is a wasteful number, since it uses less digits than its factorization.

1392820974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53461 (or 53455 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The square root of 1392820974 is about 37320.5167970649. The cubic root of 1392820974 is about 1116.7734983358.

The spelling of 1392820974 in words is "one billion, three hundred ninety-two million, eight hundred twenty thousand, nine hundred seventy-four".