438606252 has 108 divisors (see below), whose sum is σ = 1337623560. Its totient is φ = 125302464.

The previous prime is 438606229. The next prime is 438606269. The reversal of 438606252 is 252606834.

438606252 is a `hidden beast` number, since 43 + 8 + 606 + 2 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 43024 + ... + 52232.

Almost surely, 2^438606252 is an apocalyptic number.

438606252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438606252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (668811780).

438606252 is an abundant number, since it is smaller than the sum of its proper divisors (899017308).

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

438606252 is a wasteful number, since it uses less digits than its factorization.

438606252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9242 (or 9221 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The square root of 438606252 is about 20942.9284485241. The cubic root of 438606252 is about 759.7865582519.

The spelling of 438606252 in words is "four hundred thirty-eight million, six hundred six thousand, two hundred fifty-two".