392047992 has 128 divisors (see below), whose sum is σ = 1249689600. Its totient is φ = 111556224.

The previous prime is 392047987. The next prime is 392047993. The reversal of 392047992 is 299740293.

392047992 is a `hidden beast` number, since 3 + 92 + 0 + 479 + 92 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392047993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 578758 + ... + 579434.

It is an arithmetic number, because the mean of its divisors is an integer number (9763200).

Almost surely, 2^392047992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 392047992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (624844800).

392047992 is an abundant number, since it is smaller than the sum of its proper divisors (857641608).

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

392047992 is a wasteful number, since it uses less digits than its factorization.

392047992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1082 (or 1072 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 392047992 is about 19800.2018171533. The cubic root of 392047992 is about 731.8910076905.

The spelling of 392047992 in words is "three hundred ninety-two million, forty-seven thousand, nine hundred ninety-two".