392944740 has 24 divisors (see below), whose sum is σ = 1100245440. Its totient is φ = 104785248.

The previous prime is 392944729. The next prime is 392944753. The reversal of 392944740 is 47449293.

It is a junction number, because it is equal to n+sod(n) for n = 392944692 and 392944701.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3274480 + ... + 3274599.

It is an arithmetic number, because the mean of its divisors is an integer number (45843560).

Almost surely, 2^392944740 is an apocalyptic number.

392944740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

392944740 is an abundant number, since it is smaller than the sum of its proper divisors (707300700).

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

392944740 is a wasteful number, since it uses less digits than its factorization.

392944740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6549091 (or 6549089 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 42.

The square root of 392944740 is about 19822.8338034702. The cubic root of 392944740 is about 732.4486112108.

The spelling of 392944740 in words is "three hundred ninety-two million, nine hundred forty-four thousand, seven hundred forty".