438820252 has 96 divisors (see below), whose sum is σ = 921231360. Its totient is φ = 180956160.

The previous prime is 438820237. The next prime is 438820279. The reversal of 438820252 is 252028834.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1835949 + ... + 1836187.

It is an arithmetic number, because the mean of its divisors is an integer number (9596160).

Almost surely, 2^438820252 is an apocalyptic number.

It is an amenable number.

438820252 is an abundant number, since it is smaller than the sum of its proper divisors (482411108).

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

438820252 is a wasteful number, since it uses less digits than its factorization.

438820252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 438820252 is about 20948.0369486021. The cubic root of 438820252 is about 759.9101070964.

The spelling of 438820252 in words is "four hundred thirty-eight million, eight hundred twenty thousand, two hundred fifty-two".