385392438 has 16 divisors (see below), whose sum is σ = 856427760. Its totient is φ = 128464128.

The previous prime is 385392419. The next prime is 385392443. The reversal of 385392438 is 834293583.

It is a junction number, because it is equal to n+sod(n) for n = 385392393 and 385392402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3568395 + ... + 3568502.

It is an arithmetic number, because the mean of its divisors is an integer number (53526735).

Almost surely, 2^385392438 is an apocalyptic number.

385392438 is an abundant number, since it is smaller than the sum of its proper divisors (471035322).

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

385392438 is a wasteful number, since it uses less digits than its factorization.

385392438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7136908 (or 7136902 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 385392438 is about 19631.4145695108. The cubic root of 385392438 is about 727.7257286571.

The spelling of 385392438 in words is "three hundred eighty-five million, three hundred ninety-two thousand, four hundred thirty-eight".