420367972 has 12 divisors (see below), whose sum is σ = 738857980. Its totient is φ = 209265696.

The previous prime is 420367949. The next prime is 420368009. The reversal of 420367972 is 279763024.

It can be written as a sum of positive squares in 2 ways, for example, as 218330176 + 202037796 = 14776^2 + 14214^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228543 + ... + 230374.

Almost surely, 2^420367972 is an apocalyptic number.

It is an amenable number.

420367972 is a deficient number, since it is larger than the sum of its proper divisors (318490008).

420367972 is a wasteful number, since it uses less digits than its factorization.

420367972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459150 (or 459148 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 420367972 is about 20502.8771639495. The cubic root of 420367972 is about 749.1058808619.

The spelling of 420367972 in words is "four hundred twenty million, three hundred sixty-seven thousand, nine hundred seventy-two".