420805416 has 32 divisors (see below), whose sum is σ = 1052812800. Its totient is φ = 140161920.

The previous prime is 420805391. The next prime is 420805481. The reversal of 420805416 is 614508024.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29625 + ... + 41463.

It is an arithmetic number, because the mean of its divisors is an integer number (32900400).

Almost surely, 2^420805416 is an apocalyptic number.

It is an amenable number.

420805416 is an abundant number, since it is smaller than the sum of its proper divisors (632007384).

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

420805416 is a wasteful number, since it uses less digits than its factorization.

420805416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13329 (or 13325 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 420805416 is about 20513.5422587129. The cubic root of 420805416 is about 749.3656360389.

The spelling of 420805416 in words is "four hundred twenty million, eight hundred five thousand, four hundred sixteen".