438793902 has 96 divisors (see below), whose sum is σ = 1070423040. Its totient is φ = 133073280.

The previous prime is 438793891. The next prime is 438793903. The reversal of 438793902 is 209397834.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438793903) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 483333 + ... + 484239.

It is an arithmetic number, because the mean of its divisors is an integer number (11150240).

Almost surely, 2^438793902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 438793902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (535211520).

438793902 is an abundant number, since it is smaller than the sum of its proper divisors (631629138).

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

438793902 is a wasteful number, since it uses less digits than its factorization.

438793902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 960 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 438793902 is about 20947.4080019462. The cubic root of 438793902 is about 759.8948965920.

It can be divided in two parts, 4387 and 93902, that added together give a palindrome (98289).

The spelling of 438793902 in words is "four hundred thirty-eight million, seven hundred ninety-three thousand, nine hundred two".