421155200 has 48 divisors (see below), whose sum is σ = 1040392860. Its totient is φ = 168460800.

The previous prime is 421155199. The next prime is 421155221. The reversal of 421155200 is 2551124.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62606 + ... + 69005.

Almost surely, 2^421155200 is an apocalyptic number.

421155200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421155200 is an abundant number, since it is smaller than the sum of its proper divisors (619237660).

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

421155200 is a wasteful number, since it uses less digits than its factorization.

421155200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131635 (or 131618 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 421155200 is about 20522.0661727809. The cubic root of 421155200 is about 749.5732090305.

The spelling of 421155200 in words is "four hundred twenty-one million, one hundred fifty-five thousand, two hundred".