388929630 has 16 divisors (see below), whose sum is σ = 933431184. Its totient is φ = 103714560.

The previous prime is 388929623. The next prime is 388929641. The reversal of 388929630 is 36929883.

It is a self number, because there is not a number n which added to its sum of digits gives 388929630.

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, 6482131 + ... + 6482190.

It is an arithmetic number, because the mean of its divisors is an integer number (58339449).

Almost surely, 2^388929630 is an apocalyptic number.

388929630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

388929630 is an abundant number, since it is smaller than the sum of its proper divisors (544501554).

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

388929630 is a wasteful number, since it uses less digits than its factorization.

388929630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12964331.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 388929630 is about 19721.2988923144. The cubic root of 388929630 is about 729.9453452545.

The spelling of 388929630 in words is "three hundred eighty-eight million, nine hundred twenty-nine thousand, six hundred thirty".