38881404 has 48 divisors (see below), whose sum is σ = 101435040. Its totient is φ = 12879360.

The previous prime is 38881399. The next prime is 38881411. The reversal of 38881404 is 40418883.

It is a super-2 number, since 2×38881404² = 3023527154022432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17644 + ... + 19724.

It is an arithmetic number, because the mean of its divisors is an integer number (2113230).

Almost surely, 2^38881404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 38881404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50717520).

38881404 is an abundant number, since it is smaller than the sum of its proper divisors (62553636).

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

38881404 is a wasteful number, since it uses less digits than its factorization.

38881404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 36.

The square root of 38881404 is about 6235.4954895341. The cubic root of 38881404 is about 338.7770481709. Note that the first 3 decimals are identical.

The spelling of 38881404 in words is "thirty-eight million, eight hundred eighty-one thousand, four hundred four".