38440224 has 48 divisors (see below), whose sum is σ = 112119840. Its totient is φ = 12813120.

The previous prime is 38440201. The next prime is 38440231. The reversal of 38440224 is 42204483.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21382 + ... + 23109.

It is an arithmetic number, because the mean of its divisors is an integer number (2335830).

Almost surely, 2^38440224 is an apocalyptic number.

It is an amenable number.

38440224 is an abundant number, since it is smaller than the sum of its proper divisors (73679616).

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

38440224 is a wasteful number, since it uses less digits than its factorization.

38440224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44510 (or 44496 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 38440224 is about 6200.0180644898. The cubic root of 38440224 is about 337.4908244419.

The spelling of 38440224 in words is "thirty-eight million, four hundred forty thousand, two hundred twenty-four".