420716872 has 16 divisors (see below), whose sum is σ = 814291200. Its totient is φ = 203572560.

The previous prime is 420716861. The next prime is 420716917. The reversal of 420716872 is 278617024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847972 + ... + 848467.

It is an arithmetic number, because the mean of its divisors is an integer number (50893200).

Almost surely, 2^420716872 is an apocalyptic number.

It is an amenable number.

420716872 is a deficient number, since it is larger than the sum of its proper divisors (393574328).

420716872 is a wasteful number, since it uses less digits than its factorization.

420716872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696476 (or 1696472 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 420716872 is about 20511.3839611080. The cubic root of 420716872 is about 749.3130729597.

The spelling of 420716872 in words is "four hundred twenty million, seven hundred sixteen thousand, eight hundred seventy-two".