421072417590 has 32 divisors (see below), whose sum is σ = 1102444148736. Its totient is φ = 102078161760.

The previous prime is 421072417589. The next prime is 421072417609. The reversal of 421072417590 is 95714270124.

It is a congruent number.

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, 637988182 + ... + 637988841.

It is an arithmetic number, because the mean of its divisors is an integer number (34451379648).

Almost surely, 2^421072417590 is an apocalyptic number.

421072417590 is an abundant number, since it is smaller than the sum of its proper divisors (681371731146).

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

421072417590 is a wasteful number, since it uses less digits than its factorization.

421072417590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1275977044.

The product of its (nonzero) digits is 141120, while the sum is 42.

The spelling of 421072417590 in words is "four hundred twenty-one billion, seventy-two million, four hundred seventeen thousand, five hundred ninety".