388633662 has 12 divisors (see below), whose sum is σ = 842039640. Its totient is φ = 129544548.

The previous prime is 388633643. The next prime is 388633697. The reversal of 388633662 is 266336883.

388633662 is a `hidden beast` number, since 3 + 8 + 8 + 633 + 6 + 6 + 2 = 666.

It is a super-2 number, since 2×388633662² = 302072246479060488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10795362 + ... + 10795397.

It is an arithmetic number, because the mean of its divisors is an integer number (70169970).

Almost surely, 2^388633662 is an apocalyptic number.

388633662 is an abundant number, since it is smaller than the sum of its proper divisors (453405978).

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

388633662 is a wasteful number, since it uses less digits than its factorization.

388633662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21590767 (or 21590764 counting only the distinct ones).

The product of its digits is 746496, while the sum is 45.

The square root of 388633662 is about 19713.7936988293. The cubic root of 388633662 is about 729.7601401245.

The spelling of 388633662 in words is "three hundred eighty-eight million, six hundred thirty-three thousand, six hundred sixty-two".