388753442 has 16 divisors (see below), whose sum is σ = 727019712. Its totient is φ = 151462320.

The previous prime is 388753369. The next prime is 388753457. The reversal of 388753442 is 244357883.

It is a super-2 number, since 2×388753442² = 302258477333694728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 388753393 and 388753402.

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, 1262033 + ... + 1262340.

It is an arithmetic number, because the mean of its divisors is an integer number (45438732).

Almost surely, 2^388753442 is an apocalyptic number.

388753442 is a deficient number, since it is larger than the sum of its proper divisors (338266270).

388753442 is a wasteful number, since it uses less digits than its factorization.

388753442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524393.

The product of its digits is 645120, while the sum is 44.

The square root of 388753442 is about 19716.8314391537. The cubic root of 388753442 is about 729.8351050589.

The spelling of 388753442 in words is "three hundred eighty-eight million, seven hundred fifty-three thousand, four hundred forty-two".