438798516 has 24 divisors (see below), whose sum is σ = 1102622304. Its totient is φ = 135014880.

The previous prime is 438798463. The next prime is 438798539. The reversal of 438798516 is 615897834.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 1406250 + ... + 1406561.

It is an arithmetic number, because the mean of its divisors is an integer number (45942596).

Almost surely, 2^438798516 is an apocalyptic number.

It is an amenable number.

438798516 is an abundant number, since it is smaller than the sum of its proper divisors (663823788).

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

438798516 is a wasteful number, since it uses less digits than its factorization.

438798516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812831 (or 2812829 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 51.

The square root of 438798516 is about 20947.5181346144. The cubic root of 438798516 is about 759.8975600617.

The spelling of 438798516 in words is "four hundred thirty-eight million, seven hundred ninety-eight thousand, five hundred sixteen".