421088987260 has 48 divisors (see below), whose sum is σ = 898884909216. Its totient is φ = 165676326912.

The previous prime is 421088987239. The next prime is 421088987269. The reversal of 421088987260 is 62789880124.

It is a happy number.

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421088987269) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 349597 + ... + 982036.

It is an arithmetic number, because the mean of its divisors is an integer number (18726768942).

Almost surely, 2^421088987260 is an apocalyptic number.

It is an amenable number.

421088987260 is an abundant number, since it is smaller than the sum of its proper divisors (477795921956).

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

421088987260 is a wasteful number, since it uses less digits than its factorization.

421088987260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331902 (or 1331900 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 55.

The spelling of 421088987260 in words is "four hundred twenty-one billion, eighty-eight million, nine hundred eighty-seven thousand, two hundred sixty".