392379405 has 48 divisors (see below), whose sum is σ = 703261440. Its totient is φ = 186609280.

The previous prime is 392379401. The next prime is 392379409. The reversal of 392379405 is 504973293.

It is an interprime number because it is at equal distance from previous prime (392379401) and next prime (392379409).

It is not a de Polignac number, because 392379405 - 2² = 392379401 is a prime.

It is a super-3 number, since 3×392379405³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (392379401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 94156 + ... + 98234.

It is an arithmetic number, because the mean of its divisors is an integer number (14651280).

Almost surely, 2^392379405 is an apocalyptic number.

It is an amenable number.

392379405 is a deficient number, since it is larger than the sum of its proper divisors (310882035).

392379405 is a wasteful number, since it uses less digits than its factorization.

392379405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4162 (or 4151 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 42.

The square root of 392379405 is about 19808.5689791060. The cubic root of 392379405 is about 732.0971813255.

The spelling of 392379405 in words is "three hundred ninety-two million, three hundred seventy-nine thousand, four hundred five".