420815016 has 48 divisors (see below), whose sum is σ = 1141332660. Its totient is φ = 140071680.

The previous prime is 420814967. The next prime is 420815089. The reversal of 420815016 is 610518024.

It can be written as a sum of positive squares in 2 ways, for example, as 356076900 + 64738116 = 18870^2 + 8046^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 51876 + ... + 59436.

Almost surely, 2^420815016 is an apocalyptic number.

It is an amenable number.

420815016 is an abundant number, since it is smaller than the sum of its proper divisors (720517644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420815016 is a wasteful number, since it uses less digits than its factorization.

420815016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8346 (or 8339 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 420815016 is about 20513.7762491454. The cubic root of 420815016 is about 749.3713345202.

The spelling of 420815016 in words is "four hundred twenty million, eight hundred fifteen thousand, sixteen".