420204156 has 48 divisors (see below), whose sum is σ = 999398400. Its totient is φ = 137391552.

The previous prime is 420204151. The next prime is 420204167. The reversal of 420204156 is 651402024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420204151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133165 + ... + 136283.

It is an arithmetic number, because the mean of its divisors is an integer number (20820800).

Almost surely, 2^420204156 is an apocalyptic number.

It is an amenable number.

420204156 is an abundant number, since it is smaller than the sum of its proper divisors (579194244).

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

420204156 is a wasteful number, since it uses less digits than its factorization.

420204156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3338 (or 3336 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 420204156 is about 20498.8818231629. The cubic root of 420204156 is about 749.0085601959.

The spelling of 420204156 in words is "four hundred twenty million, two hundred four thousand, one hundred fifty-six".