421587597702240 has 144 divisors (see below), whose sum is σ = 1451399250083328. Its totient is φ = 111428462358528.

The previous prime is 421587597702203. The next prime is 421587597702253. The reversal of 421587597702240 is 42207795785124.

421587597702240 is a `hidden beast` number, since 4 + 2 + 1 + 587 + 5 + 9 + 7 + 7 + 0 + 2 + 2 + 40 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×421587597702240² (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 23 ways as a sum of consecutive naturals, for example, 1295276064 + ... + 1295601503.

It is an arithmetic number, because the mean of its divisors is an integer number (10079161458912).

Almost surely, 2^{421587597702240} is an apocalyptic number.

421587597702240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421587597702240 is an abundant number, since it is smaller than the sum of its proper divisors (1029811652381088).

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

421587597702240 is a wasteful number, since it uses less digits than its factorization.

421587597702240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590877701 (or 2590877690 counting only the distinct ones).

The product of its (nonzero) digits is 79027200, while the sum is 63.

The spelling of 421587597702240 in words is "four hundred twenty-one trillion, five hundred eighty-seven billion, five hundred ninety-seven million, seven hundred two thousand, two hundred forty".