200122428 has 48 divisors (see below), whose sum is σ = 520257024. Its totient is φ = 59351040.

The previous prime is 200122427. The next prime is 200122451. The reversal of 200122428 is 824221002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200122427) 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, 9925 + ... + 22332.

It is an arithmetic number, because the mean of its divisors is an integer number (10838688).

Almost surely, 2^200122428 is an apocalyptic number.

It is an amenable number.

200122428 is an abundant number, since it is smaller than the sum of its proper divisors (320134596).

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

200122428 is a wasteful number, since it uses less digits than its factorization.

200122428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32322 (or 32320 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 200122428 is about 14146.4634449745. The cubic root of 200122428 is about 584.9228505171.

The spelling of 200122428 in words is "two hundred million, one hundred twenty-two thousand, four hundred twenty-eight".