38613280 has 24 divisors (see below), whose sum is σ = 91224252. Its totient is φ = 15445248.

The previous prime is 38613271. The next prime is 38613287. The reversal of 38613280 is 8231683.

It can be written as a sum of positive squares in 2 ways, for example, as 38588944 + 24336 = 6212^2 + 156^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (38613287) 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, 120507 + ... + 120826.

Almost surely, 2^38613280 is an apocalyptic number.

It is an amenable number.

38613280 is an abundant number, since it is smaller than the sum of its proper divisors (52610972).

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

38613280 is a wasteful number, since it uses less digits than its factorization.

38613280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241348 (or 241340 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 38613280 is about 6213.9584807110. The cubic root of 38613280 is about 337.9965220281.

The spelling of 38613280 in words is "thirty-eight million, six hundred thirteen thousand, two hundred eighty".