421438146839024 has 40 divisors (see below), whose sum is σ = 933186184949088. Its totient is φ = 180616016332800.

The previous prime is 421438146838993. The next prime is 421438146839063. The reversal of 421438146839024 is 420938641834124.

It is a super-2 number, since 2×421438146839024² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63428324 + ... + 69756924.

Almost surely, 2^{421438146839024} is an apocalyptic number.

It is an amenable number.

421438146839024 is an abundant number, since it is smaller than the sum of its proper divisors (511748038110064).

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

421438146839024 is a wasteful number, since it uses less digits than its factorization.

421438146839024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6923193 (or 6923187 counting only the distinct ones).

The product of its (nonzero) digits is 31850496, while the sum is 59.

The spelling of 421438146839024 in words is "four hundred twenty-one trillion, four hundred thirty-eight billion, one hundred forty-six million, eight hundred thirty-nine thousand, twenty-four".