438252372 has 36 divisors (see below), whose sum is σ = 1108452436. Its totient is φ = 145998720.

The previous prime is 438252349. The next prime is 438252391. The reversal of 438252372 is 273252834.

438252372 is a `hidden beast` number, since 4 + 38 + 252 + 372 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 373030596 + 65221776 = 19314^2 + 8076^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100722 + ... + 104982.

Almost surely, 2^438252372 is an apocalyptic number.

It is an amenable number.

438252372 is an abundant number, since it is smaller than the sum of its proper divisors (670200064).

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

438252372 is a wasteful number, since it uses less digits than its factorization.

438252372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7128 (or 7123 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 438252372 is about 20934.4780684879. The cubic root of 438252372 is about 759.5821641361.

The spelling of 438252372 in words is "four hundred thirty-eight million, two hundred fifty-two thousand, three hundred seventy-two".