421406503620 has 96 divisors (see below), whose sum is σ = 1261716414336. Its totient is φ = 104717568000.

The previous prime is 421406503619. The next prime is 421406503627. The reversal of 421406503620 is 26305604124.

It is not an unprimeable number, because it can be changed into a prime (421406503627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1942246 + ... + 2148285.

It is an arithmetic number, because the mean of its divisors is an integer number (13142879316).

Almost surely, 2^421406503620 is an apocalyptic number.

It is an amenable number.

421406503620 is an abundant number, since it is smaller than the sum of its proper divisors (840309910716).

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

421406503620 is a wasteful number, since it uses less digits than its factorization.

421406503620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090661 (or 4090659 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The spelling of 421406503620 in words is "four hundred twenty-one billion, four hundred six million, five hundred three thousand, six hundred twenty".