200312190 has 192 divisors, whose sum is σ = 617512896. Its totient is φ = 46282752.

The previous prime is 200312179. The next prime is 200312209. The reversal of 200312190 is 91213002.

It is a happy number.

It is a super-2 number, since 2×200312190² = 80249946925192200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 536844 + ... + 537216.

It is an arithmetic number, because the mean of its divisors is an integer number (3216213).

Almost surely, 2^200312190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 200312190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (308756448).

200312190 is an abundant number, since it is smaller than the sum of its proper divisors (417200706).

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

200312190 is a wasteful number, since it uses less digits than its factorization.

200312190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 413 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 200312190 is about 14153.1689031114. The cubic root of 200312190 is about 585.1076724888.

Adding to 200312190 its reverse (91213002), we get a palindrome (291525192).

The spelling of 200312190 in words is "two hundred million, three hundred twelve thousand, one hundred ninety".