420872160 has 48 divisors (see below), whose sum is σ = 1325748816. Its totient is φ = 112232448.

The previous prime is 420872159. The next prime is 420872191. The reversal of 420872160 is 61278024.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 437929 + ... + 438888.

It is an arithmetic number, because the mean of its divisors is an integer number (27619767).

Almost surely, 2^420872160 is an apocalyptic number.

420872160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420872160 is an abundant number, since it is smaller than the sum of its proper divisors (904876656).

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

420872160 is a wasteful number, since it uses less digits than its factorization.

420872160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876835 (or 876827 counting only the distinct ones).

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

The square root of 420872160 is about 20515.1690219701. The cubic root of 420872160 is about 749.4052529370.

The spelling of 420872160 in words is "four hundred twenty million, eight hundred seventy-two thousand, one hundred sixty".