388734 has 16 divisors (see below), whose sum is σ = 789888. Its totient is φ = 127512.

The previous prime is 388727. The next prime is 388757. The reversal of 388734 is 437883.

It is a super-2 number, since 2×388734² = 302228245512, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388695 and 388704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82 + ... + 885.

It is an arithmetic number, because the mean of its divisors is an integer number (49368).

2³⁸⁸⁷³⁴ is an apocalyptic number.

388734 is an abundant number, since it is smaller than the sum of its proper divisors (401154).

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

388734 is a wasteful number, since it uses less digits than its factorization.

388734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039.

The product of its digits is 16128, while the sum is 33.

The square root of 388734 is about 623.4853647039. The cubic root of 388734 is about 72.9822938229.

The spelling of 388734 in words is "three hundred eighty-eight thousand, seven hundred thirty-four".