428411916 has 36 divisors (see below), whose sum is σ = 1123041192. Its totient is φ = 142803648.

The previous prime is 428411903. The next prime is 428411939. The reversal of 428411916 is 619114824.

428411916 is a `hidden beast` number, since 428 + 41 + 191 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 219405 + ... + 221348.

Almost surely, 2^428411916 is an apocalyptic number.

It is an amenable number.

428411916 is an abundant number, since it is smaller than the sum of its proper divisors (694629276).

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

428411916 is a wasteful number, since it uses less digits than its factorization.

428411916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440772 (or 440758 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 428411916 is about 20698.1138271099. The cubic root of 428411916 is about 753.8538907812.

The spelling of 428411916 in words is "four hundred twenty-eight million, four hundred eleven thousand, nine hundred sixteen".