38404180 has 24 divisors (see below), whose sum is σ = 81367272. Its totient is φ = 15224832.

The previous prime is 38404169. The next prime is 38404189. The reversal of 38404180 is 8140483.

It can be written as a sum of positive squares in 4 ways, for example, as 1607824 + 36796356 = 1268^2 + 6066^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38404189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6237 + ... + 10756.

It is an arithmetic number, because the mean of its divisors is an integer number (3390303).

Almost surely, 2^38404180 is an apocalyptic number.

It is an amenable number.

38404180 is an abundant number, since it is smaller than the sum of its proper divisors (42963092).

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

38404180 is a wasteful number, since it uses less digits than its factorization.

38404180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17115 (or 17113 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 38404180 is about 6197.1106170537. The cubic root of 38404180 is about 337.3853071645.

The spelling of 38404180 in words is "thirty-eight million, four hundred four thousand, one hundred eighty".