38889288 has 32 divisors (see below), whose sum is σ = 108026400. Its totient is φ = 12963024.

The previous prime is 38889287. The next prime is 38889293. The reversal of 38889288 is 88298883.

It is a super-2 number, since 2×38889288² = 3024753442293888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (38889287) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 89806 + ... + 90237.

It is an arithmetic number, because the mean of its divisors is an integer number (3375825).

Almost surely, 2^38889288 is an apocalyptic number.

It is an amenable number.

38889288 is an abundant number, since it is smaller than the sum of its proper divisors (69137112).

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

38889288 is a wasteful number, since it uses less digits than its factorization.

38889288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180058 (or 180048 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 54.

The square root of 38889288 is about 6236.1276446205. The cubic root of 38889288 is about 338.7999446155.

It can be divided in two parts, 388 and 89288, that added together give a triangular number (89676 = T₄₂₃).

The spelling of 38889288 in words is "thirty-eight million, eight hundred eighty-nine thousand, two hundred eighty-eight".