385988 has 6 divisors (see below), whose sum is σ = 675486. Its totient is φ = 192992.

The previous prime is 385967. The next prime is 385991. The reversal of 385988 is 889583.

It can be written as a sum of positive squares in only one way, i.e., 232324 + 153664 = 482^2 + 392^2 .

It is a super-2 number, since 2×385988² = 297973472288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48245 + ... + 48252.

It is an arithmetic number, because the mean of its divisors is an integer number (112581).

2³⁸⁵⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

385988 is a deficient number, since it is larger than the sum of its proper divisors (289498).

385988 is a wasteful number, since it uses less digits than its factorization.

385988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96501 (or 96499 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 385988 is about 621.2793252636. The cubic root of 385988 is about 72.8100396732.

The spelling of 385988 in words is "three hundred eighty-five thousand, nine hundred eighty-eight".