385669776 has 20 divisors (see below), whose sum is σ = 996313712. Its totient is φ = 128556576.

The previous prime is 385669723. The next prime is 385669789. The reversal of 385669776 is 677966583.

It is a super-2 number, since 2×385669776² = 297482352239780352, which contains 22 as substring.

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, 4017346 + ... + 4017441.

Almost surely, 2^385669776 is an apocalyptic number.

It is an amenable number.

385669776 is an abundant number, since it is smaller than the sum of its proper divisors (610643936).

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

385669776 is a wasteful number, since it uses less digits than its factorization.

385669776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8034798 (or 8034792 counting only the distinct ones).

The product of its digits is 11430720, while the sum is 57.

The square root of 385669776 is about 19638.4769266865. The cubic root of 385669776 is about 727.9002499887.

The spelling of 385669776 in words is "three hundred eighty-five million, six hundred sixty-nine thousand, seven hundred seventy-six".