421745082 has 32 divisors (see below), whose sum is σ = 920908224. Its totient is φ = 127699200.

The previous prime is 421745021. The next prime is 421745117. The reversal of 421745082 is 280547124.

It is a Harshad number since it is a multiple of its sum of digits (33).

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, 141148 + ... + 144104.

It is an arithmetic number, because the mean of its divisors is an integer number (28778382).

Almost surely, 2^421745082 is an apocalyptic number.

421745082 is an abundant number, since it is smaller than the sum of its proper divisors (499163142).

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

421745082 is a wasteful number, since it uses less digits than its factorization.

421745082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5134.

The product of its (nonzero) digits is 17920, while the sum is 33.

The square root of 421745082 is about 20536.4330398441. The cubic root of 421745082 is about 749.9230036512.

The spelling of 421745082 in words is "four hundred twenty-one million, seven hundred forty-five thousand, eighty-two".