38630388 has 12 divisors (see below), whose sum is σ = 90137600. Its totient is φ = 12876792.

The previous prime is 38630387. The next prime is 38630393. The reversal of 38630388 is 88303683.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38630387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1609588 + ... + 1609611.

Almost surely, 2^38630388 is an apocalyptic number.

It is an amenable number.

38630388 is an abundant number, since it is smaller than the sum of its proper divisors (51507212).

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

38630388 is a wasteful number, since it uses less digits than its factorization.

38630388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3219206 (or 3219204 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 38630388 is about 6215.3349065034. The cubic root of 38630388 is about 338.0464322379.

The spelling of 38630388 in words is "thirty-eight million, six hundred thirty thousand, three hundred eighty-eight".