420702816 has 48 divisors (see below), whose sum is σ = 1107086400. Its totient is φ = 139886208.

The previous prime is 420702809. The next prime is 420702823. The reversal of 420702816 is 618207024.

It is an interprime number because it is at equal distance from previous prime (420702809) and next prime (420702823).

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34995 + ... + 45453.

It is an arithmetic number, because the mean of its divisors is an integer number (23064300).

Almost surely, 2^420702816 is an apocalyptic number.

It is an amenable number.

420702816 is an abundant number, since it is smaller than the sum of its proper divisors (686383584).

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

420702816 is a wasteful number, since it uses less digits than its factorization.

420702816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10891 (or 10883 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 420702816 is about 20511.0413192505. The cubic root of 420702816 is about 749.3047281063.

The spelling of 420702816 in words is "four hundred twenty million, seven hundred two thousand, eight hundred sixteen".