392093945 has 8 divisors (see below), whose sum is σ = 470676744. Its totient is φ = 313565824.

The previous prime is 392093941. The next prime is 392093957. The reversal of 392093945 is 549390293.

It can be written as a sum of positive squares in 4 ways, for example, as 198021184 + 194072761 = 14072^2 + 13931^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 392093945 - 2² = 392093941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 392093896 and 392093905.

It is not an unprimeable number, because it can be changed into a prime (392093941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4247 + ... + 28323.

It is an arithmetic number, because the mean of its divisors is an integer number (58834593).

Almost surely, 2^392093945 is an apocalyptic number.

It is an amenable number.

392093945 is a deficient number, since it is larger than the sum of its proper divisors (78582799).

392093945 is a wasteful number, since it uses less digits than its factorization.

392093945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27339.

The product of its (nonzero) digits is 262440, while the sum is 44.

The square root of 392093945 is about 19801.3622006164. The cubic root of 392093945 is about 731.9196022114.

The spelling of 392093945 in words is "three hundred ninety-two million, ninety-three thousand, nine hundred forty-five".