200644442 has 8 divisors (see below), whose sum is σ = 305089716. Its totient is φ = 98947872.

The previous prime is 200644441. The next prime is 200644459. The reversal of 200644442 is 244446002.

It can be written as a sum of positive squares in 2 ways, for example, as 200194201 + 450241 = 14149^2 + 671^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (200644441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686993 + ... + 687284.

Almost surely, 2^200644442 is an apocalyptic number.

200644442 is a deficient number, since it is larger than the sum of its proper divisors (104445274).

200644442 is a wasteful number, since it uses less digits than its factorization.

200644442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374352.

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 200644442 is about 14164.9017645729. The cubic root of 200644442 is about 585.4309941493.

The spelling of 200644442 in words is "two hundred million, six hundred forty-four thousand, four hundred forty-two".