385504008 has 32 divisors (see below), whose sum is σ = 964786560. Its totient is φ = 128364480.

The previous prime is 385504001. The next prime is 385504013. The reversal of 385504008 is 800405583.

It is a happy number.

It is a super-2 number, since 2×385504008² = 297226680368128128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 385504008.

It is not an unprimeable number, because it can be changed into a prime (385504001) 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, 15873 + ... + 31983.

It is an arithmetic number, because the mean of its divisors is an integer number (30149580).

Almost surely, 2^385504008 is an apocalyptic number.

It is an amenable number.

385504008 is an abundant number, since it is smaller than the sum of its proper divisors (579282552).

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

385504008 is a wasteful number, since it uses less digits than its factorization.

385504008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17117 (or 17113 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 385504008 is about 19634.2559828479. The cubic root of 385504008 is about 727.7959467152.

The spelling of 385504008 in words is "three hundred eighty-five million, five hundred four thousand, eight".