420336016 has 20 divisors (see below), whose sum is σ = 862307532. Its totient is φ = 197805056.

The previous prime is 420336013. The next prime is 420336019. The reversal of 420336016 is 610633024.

It is an interprime number because it is at equal distance from previous prime (420336013) and next prime (420336019).

It can be written as a sum of positive squares in 2 ways, for example, as 335622400 + 84713616 = 18320^2 + 9204^2 .

It is not an unprimeable number, because it can be changed into a prime (420336013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772405 + ... + 772948.

Almost surely, 2^420336016 is an apocalyptic number.

It is an amenable number.

420336016 is an abundant number, since it is smaller than the sum of its proper divisors (441971516).

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

420336016 is a wasteful number, since it uses less digits than its factorization.

420336016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1545378 (or 1545372 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 420336016 is about 20502.0978438793. The cubic root of 420336016 is about 749.0868982596.

The spelling of 420336016 in words is "four hundred twenty million, three hundred thirty-six thousand, sixteen".