200868990 has 64 divisors (see below), whose sum is σ = 558544896. Its totient is φ = 45280512.

The previous prime is 200868979. The next prime is 200869001. The reversal of 200868990 is 99868002.

It is an interprime number because it is at equal distance from previous prime (200868979) and next prime (200869001).

It is a super-2 number, since 2×200868990² = 80696702287240200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8779 + ... + 21881.

It is an arithmetic number, because the mean of its divisors is an integer number (8727264).

Almost surely, 2^200868990 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200868990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279272448).

200868990 is an abundant number, since it is smaller than the sum of its proper divisors (357675906).

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

200868990 is a wasteful number, since it uses less digits than its factorization.

200868990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13193.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 200868990 is about 14172.8257591773. The cubic root of 200868990 is about 585.6493046236.

The spelling of 200868990 in words is "two hundred million, eight hundred sixty-eight thousand, nine hundred ninety".