420051502 has 32 divisors (see below), whose sum is σ = 696148992. Its totient is φ = 188878944.

The previous prime is 420051493. The next prime is 420051517. The reversal of 420051502 is 205150024.

It is a self number, because there is not a number n which added to its sum of digits gives 420051502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 320733 + ... + 322039.

It is an arithmetic number, because the mean of its divisors is an integer number (21754656).

Almost surely, 2^420051502 is an apocalyptic number.

420051502 is a deficient number, since it is larger than the sum of its proper divisors (276097490).

420051502 is a wasteful number, since it uses less digits than its factorization.

420051502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 420051502 is about 20495.1580135407. The cubic root of 420051502 is about 748.9178479395.

The spelling of 420051502 in words is "four hundred twenty million, fifty-one thousand, five hundred two".