420872552 has 16 divisors (see below), whose sum is σ = 794434500. Its totient is φ = 209023360.

The previous prime is 420872531. The next prime is 420872567. The reversal of 420872552 is 255278024.

It can be written as a sum of positive squares in 2 ways, for example, as 412658596 + 8213956 = 20314^2 + 2866^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175349 + ... + 177732.

Almost surely, 2^420872552 is an apocalyptic number.

It is an amenable number.

420872552 is a deficient number, since it is larger than the sum of its proper divisors (373561948).

420872552 is a wasteful number, since it uses less digits than its factorization.

420872552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353236 (or 353232 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 35.

The square root of 420872552 is about 20515.1785758740. The cubic root of 420872552 is about 749.4054856021.

The spelling of 420872552 in words is "four hundred twenty million, eight hundred seventy-two thousand, five hundred fifty-two".