420745904 has 10 divisors (see below), whose sum is σ = 815195220. Its totient is φ = 210372944.

The previous prime is 420745883. The next prime is 420745909. The reversal of 420745904 is 409547024.

It is not an unprimeable number, because it can be changed into a prime (420745909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13148294 + ... + 13148325.

It is an arithmetic number, because the mean of its divisors is an integer number (81519522).

Almost surely, 2^420745904 is an apocalyptic number.

It is an amenable number.

420745904 is a deficient number, since it is larger than the sum of its proper divisors (394449316).

420745904 is a wasteful number, since it uses less digits than its factorization.

420745904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26296627 (or 26296621 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 420745904 is about 20512.0916534614. The cubic root of 420745904 is about 749.3303082694.

The spelling of 420745904 in words is "four hundred twenty million, seven hundred forty-five thousand, nine hundred four".