421402080 has 96 divisors (see below), whose sum is σ = 1448108928. Its totient is φ = 102156800.

The previous prime is 421402073. The next prime is 421402117. The reversal of 421402080 is 80204124.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34626 + ... + 45185.

It is an arithmetic number, because the mean of its divisors is an integer number (15084468).

Almost surely, 2^421402080 is an apocalyptic number.

421402080 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421402080 is an abundant number, since it is smaller than the sum of its proper divisors (1026706848).

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

421402080 is a wasteful number, since it uses less digits than its factorization.

421402080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79840 (or 79832 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 421402080 is about 20528.0802804354. The cubic root of 421402080 is about 749.7196463266.

The spelling of 421402080 in words is "four hundred twenty-one million, four hundred two thousand, eighty".