421055860 has 48 divisors (see below), whose sum is σ = 903571200. Its totient is φ = 164764544.

The previous prime is 421055851. The next prime is 421055879. The reversal of 421055860 is 68550124.

It is a congruent number.

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, 281274 + ... + 282766.

It is an arithmetic number, because the mean of its divisors is an integer number (18824400).

Almost surely, 2^421055860 is an apocalyptic number.

It is an amenable number.

421055860 is an abundant number, since it is smaller than the sum of its proper divisors (482515340).

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

421055860 is a wasteful number, since it uses less digits than its factorization.

421055860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800 (or 1798 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 421055860 is about 20519.6457084424. The cubic root of 421055860 is about 749.5142691924.

The spelling of 421055860 in words is "four hundred twenty-one million, fifty-five thousand, eight hundred sixty".