420972704 has 12 divisors (see below), whose sum is σ = 828790074. Its totient is φ = 210486336.

The previous prime is 420972701. The next prime is 420972719. The reversal of 420972704 is 407279024.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 391248400 + 29724304 = 19780^2 + 5452^2 .

It is not an unprimeable number, because it can be changed into a prime (420972701) by changing a digit.

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 as a sum of consecutive naturals, namely, 6577667 + ... + 6577730.

Almost surely, 2^420972704 is an apocalyptic number.

It is an amenable number.

420972704 is a deficient number, since it is larger than the sum of its proper divisors (407817370).

420972704 is a wasteful number, since it uses less digits than its factorization.

420972704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13155407 (or 13155399 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 35.

The square root of 420972704 is about 20517.6193550811. The cubic root of 420972704 is about 749.4649244237.

The spelling of 420972704 in words is "four hundred twenty million, nine hundred seventy-two thousand, seven hundred four".