420802160 has 40 divisors (see below), whose sum is σ = 994958640. Its totient is φ = 165466112.

The previous prime is 420802141. The next prime is 420802163. The reversal of 420802160 is 61208024.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420802163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39857 + ... + 49296.

It is an arithmetic number, because the mean of its divisors is an integer number (24873966).

Almost surely, 2^420802160 is an apocalyptic number.

420802160 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

420802160 is an abundant number, since it is smaller than the sum of its proper divisors (574156480).

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

420802160 is a wasteful number, since it uses less digits than its factorization.

420802160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89225 (or 89219 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 420802160 is about 20513.4628963518. The cubic root of 420802160 is about 749.3637032843.

The spelling of 420802160 in words is "four hundred twenty million, eight hundred two thousand, one hundred sixty".