385724784 has 40 divisors (see below), whose sum is σ = 1004078592. Its totient is φ = 127591360.

The previous prime is 385724767. The next prime is 385724791. The reversal of 385724784 is 487427583.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24384 + ... + 36959.

Almost surely, 2^385724784 is an apocalyptic number.

It is an amenable number.

385724784 is an abundant number, since it is smaller than the sum of its proper divisors (618353808).

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

385724784 is a wasteful number, since it uses less digits than its factorization.

385724784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61485 (or 61479 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The square root of 385724784 is about 19639.8773926927. The cubic root of 385724784 is about 727.9348550973.

The spelling of 385724784 in words is "three hundred eighty-five million, seven hundred twenty-four thousand, seven hundred eighty-four".