421140274304 has 128 divisors (see below), whose sum is σ = 897058437120. Its totient is φ = 196245504000.

The previous prime is 421140274259. The next prime is 421140274327. The reversal of 421140274304 is 403472041124.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 187089179 + ... + 187091429.

It is an arithmetic number, because the mean of its divisors is an integer number (7008269040).

Almost surely, 2^421140274304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421140274304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448529218560).

421140274304 is an abundant number, since it is smaller than the sum of its proper divisors (475918162816).

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

421140274304 is a wasteful number, since it uses less digits than its factorization.

421140274304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3086 (or 3074 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 32.

The spelling of 421140274304 in words is "four hundred twenty-one billion, one hundred forty million, two hundred seventy-four thousand, three hundred four".