388493 has 16 divisors (see below), whose sum is σ = 491520. Its totient is φ = 299376.

The previous prime is 388489. The next prime is 388499. The reversal of 388493 is 394883.

It is not a de Polignac number, because 388493 - 2² = 388489 is a prime.

It is a super-2 number, since 2×388493² = 301853622098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (388499) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2996 + ... + 3122.

It is an arithmetic number, because the mean of its divisors is an integer number (30720).

2³⁸⁸⁴⁹³ is an apocalyptic number.

It is an amenable number.

388493 is a deficient number, since it is larger than the sum of its proper divisors (103027).

388493 is a wasteful number, since it uses less digits than its factorization.

388493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176.

The product of its digits is 20736, while the sum is 35.

The square root of 388493 is about 623.2920663702. The cubic root of 388493 is about 72.9672086414.

The spelling of 388493 in words is "three hundred eighty-eight thousand, four hundred ninety-three".