385442688 has 32 divisors (see below), whose sum is σ = 1023833160. Its totient is φ = 128480768.

The previous prime is 385442657. The next prime is 385442711. The reversal of 385442688 is 886244583.

It is a tau number, because it is divible by the number of its divisors (32).

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 501495 + ... + 502262.

Almost surely, 2^385442688 is an apocalyptic number.

It is an amenable number.

385442688 is an abundant number, since it is smaller than the sum of its proper divisors (638390472).

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

385442688 is a wasteful number, since it uses less digits than its factorization.

It is an anagram of its base 9 representation: 385442688 = (885244863)₉.

385442688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003774 (or 1003762 counting only the distinct ones).

The product of its digits is 1474560, while the sum is 48.

The square root of 385442688 is about 19632.6943642486. The cubic root of 385442688 is about 727.7573558376.

The spelling of 385442688 in words is "three hundred eighty-five million, four hundred forty-two thousand, six hundred eighty-eight".