38913630 has 32 divisors (see below), whose sum is σ = 106735104. Its totient is φ = 8894496.

The previous prime is 38913619. The next prime is 38913647. The reversal of 38913630 is 3631983.

38913630 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 38913591 and 38913600.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92442 + ... + 92861.

It is an arithmetic number, because the mean of its divisors is an integer number (3335472).

Almost surely, 2^38913630 is an apocalyptic number.

38913630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

38913630 is an abundant number, since it is smaller than the sum of its proper divisors (67821474).

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

38913630 is a wasteful number, since it uses less digits than its factorization.

38913630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185320.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 38913630 is about 6238.0790312403. The cubic root of 38913630 is about 338.8706183029.

The spelling of 38913630 in words is "thirty-eight million, nine hundred thirteen thousand, six hundred thirty".