38631380 has 12 divisors (see below), whose sum is σ = 81125940. Its totient is φ = 15452544.

The previous prime is 38631377. The next prime is 38631391. The reversal of 38631380 is 8313683.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15147664 + 23483716 = 3892^2 + 4846^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 965765 + ... + 965804.

It is an arithmetic number, because the mean of its divisors is an integer number (6760495).

Almost surely, 2^38631380 is an apocalyptic number.

It is an amenable number.

38631380 is an abundant number, since it is smaller than the sum of its proper divisors (42494560).

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

38631380 is a wasteful number, since it uses less digits than its factorization.

38631380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931578 (or 1931576 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 38631380 is about 6215.4147086096. The cubic root of 38631380 is about 338.0493258079.

The spelling of 38631380 in words is "thirty-eight million, six hundred thirty-one thousand, three hundred eighty".