438909076 has 12 divisors (see below), whose sum is σ = 769023220. Its totient is φ = 219188160.

The previous prime is 438909073. The next prime is 438909143. The reversal of 438909076 is 670909834.

It can be written as a sum of positive squares in 2 ways, for example, as 314140176 + 124768900 = 17724^2 + 11170^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438909071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62865 + ... + 69496.

Almost surely, 2^438909076 is an apocalyptic number.

It is an amenable number.

438909076 is a deficient number, since it is larger than the sum of its proper divisors (330114144).

438909076 is a wasteful number, since it uses less digits than its factorization.

438909076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133194 (or 133192 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 438909076 is about 20950.1569445195. The cubic root of 438909076 is about 759.9613761535.

The spelling of 438909076 in words is "four hundred thirty-eight million, nine hundred nine thousand, seventy-six".