200556420 has 48 divisors (see below), whose sum is σ = 575261568. Its totient is φ = 52176640.

The previous prime is 200556383. The next prime is 200556437. The reversal of 200556420 is 24655002.

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, 38304 + ... + 43223.

It is an arithmetic number, because the mean of its divisors is an integer number (11984616).

Almost surely, 2^200556420 is an apocalyptic number.

200556420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200556420 is an abundant number, since it is smaller than the sum of its proper divisors (374705148).

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

200556420 is a wasteful number, since it uses less digits than its factorization.

200556420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81580 (or 81578 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 200556420 is about 14161.7943778322. The cubic root of 200556420 is about 585.3453727988.

The spelling of 200556420 in words is "two hundred million, five hundred fifty-six thousand, four hundred twenty".