200427780 has 48 divisors (see below), whose sum is σ = 641370240. Its totient is φ = 45811968.

The previous prime is 200427769. The next prime is 200427781. The reversal of 200427780 is 87724002.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (200427781) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238185 + ... + 239024.

It is an arithmetic number, because the mean of its divisors is an integer number (13361880).

Almost surely, 2^200427780 is an apocalyptic number.

200427780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200427780 is an abundant number, since it is smaller than the sum of its proper divisors (440942460).

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

200427780 is a wasteful number, since it uses less digits than its factorization.

200427780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477228 (or 477226 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 30.

The square root of 200427780 is about 14157.2518519662. The cubic root of 200427780 is about 585.2201961631.

The spelling of 200427780 in words is "two hundred million, four hundred twenty-seven thousand, seven hundred eighty".