385504758 has 20 divisors (see below), whose sum is σ = 863816580. Its totient is φ = 128501532.

The previous prime is 385504741. The next prime is 385504759. The reversal of 385504758 is 857405583.

385504758 is a `hidden beast` number, since 3 + 8 + 550 + 47 + 58 = 666.

It is a super-2 number, since 2×385504758² = 297227836881277128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385504759) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1189668 + ... + 1189991.

It is an arithmetic number, because the mean of its divisors is an integer number (43190829).

Almost surely, 2^385504758 is an apocalyptic number.

385504758 is an abundant number, since it is smaller than the sum of its proper divisors (478311822).

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

385504758 is a wasteful number, since it uses less digits than its factorization.

385504758 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2379673 (or 2379664 counting only the distinct ones).

The product of its (nonzero) digits is 672000, while the sum is 45.

The square root of 385504758 is about 19634.2750821109. The cubic root of 385504758 is about 727.7964186918.

The spelling of 385504758 in words is "three hundred eighty-five million, five hundred four thousand, seven hundred fifty-eight".