438389452 has 12 divisors (see below), whose sum is σ = 767699856. Its totient is φ = 219046640.

The previous prime is 438389443. The next prime is 438389461. The reversal of 438389452 is 254983834.

It is an interprime number because it is at equal distance from previous prime (438389443) and next prime (438389461).

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30223 + ... + 42310.

It is an arithmetic number, because the mean of its divisors is an integer number (63974988).

Almost surely, 2^438389452 is an apocalyptic number.

It is an amenable number.

438389452 is a deficient number, since it is larger than the sum of its proper divisors (329310404).

438389452 is a wasteful number, since it uses less digits than its factorization.

438389452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74048 (or 74046 counting only the distinct ones).

The product of its digits is 829440, while the sum is 46.

The square root of 438389452 is about 20937.7518372914. The cubic root of 438389452 is about 759.6613518944.

The spelling of 438389452 in words is "four hundred thirty-eight million, three hundred eighty-nine thousand, four hundred fifty-two".