388744 has 8 divisors (see below), whose sum is σ = 728910. Its totient is φ = 194368.

The previous prime is 388727. The next prime is 388757. The reversal of 388744 is 447883.

It can be written as a sum of positive squares in only one way, i.e., 315844 + 72900 = 562^2 + 270^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×388744² = 302243795072, 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, 24289 + ... + 24304.

2³⁸⁸⁷⁴⁴ is an apocalyptic number.

It is an amenable number.

388744 is a deficient number, since it is larger than the sum of its proper divisors (340166).

388744 is a wasteful number, since it uses less digits than its factorization.

388744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48599 (or 48595 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 388744 is about 623.4933840868. The cubic root of 388744 is about 72.9829196293.

The spelling of 388744 in words is "three hundred eighty-eight thousand, seven hundred forty-four".