438629616 has 30 divisors (see below), whose sum is σ = 1227554120. Its totient is φ = 146209824.

The previous prime is 438629599. The next prime is 438629621. The reversal of 438629616 is 616926834.

438629616 is a `hidden beast` number, since 4 + 3 + 8 + 6 + 29 + 616 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1522876 + ... + 1523163.

Almost surely, 2^438629616 is an apocalyptic number.

It is an amenable number.

438629616 is an abundant number, since it is smaller than the sum of its proper divisors (788924504).

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

438629616 is a wasteful number, since it uses less digits than its factorization.

438629616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046053 (or 3046044 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 438629616 is about 20943.4862427438. The cubic root of 438629616 is about 759.8000489685.

The spelling of 438629616 in words is "four hundred thirty-eight million, six hundred twenty-nine thousand, six hundred sixteen".