421254560 has 48 divisors (see below), whose sum is σ = 1053762696. Its totient is φ = 158588928.

The previous prime is 421254553. The next prime is 421254571. The reversal of 421254560 is 65452124.

It can be written as a sum of positive squares in 4 ways, for example, as 379626256 + 41628304 = 19484^2 + 6452^2 .

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, 74717 + ... + 80156.

Almost surely, 2^421254560 is an apocalyptic number.

421254560 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421254560 is an abundant number, since it is smaller than the sum of its proper divisors (632508136).

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

421254560 is a wasteful number, since it uses less digits than its factorization.

421254560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154905 (or 154897 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 421254560 is about 20524.4868388956. The cubic root of 421254560 is about 749.6321514646.

The spelling of 421254560 in words is "four hundred twenty-one million, two hundred fifty-four thousand, five hundred sixty".