38644375 has 60 divisors (see below), whose sum is σ = 61492816. Its totient is φ = 23760000.

The previous prime is 38644369. The next prime is 38644379. The reversal of 38644375 is 57344683.

It is not a de Polignac number, because 38644375 - 2¹⁹ = 38120087 is a prime.

Its product of digits (241920) is a multiple of the sum of its prime divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38644379) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 529339 + ... + 529411.

Almost surely, 2^38644375 is an apocalyptic number.

38644375 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

38644375 is a deficient number, since it is larger than the sum of its proper divisors (22848441).

38644375 is an equidigital number, since it uses as much as digits as its factorization.

38644375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122 (or 96 counting only the distinct ones).

The product of its digits is 241920, while the sum is 40.

The square root of 38644375 is about 6216.4600055015. The cubic root of 38644375 is about 338.0872264171.

The spelling of 38644375 in words is "thirty-eight million, six hundred forty-four thousand, three hundred seventy-five".