199880490 has 32 divisors (see below), whose sum is σ = 488768256. Its totient is φ = 52295360.

The previous prime is 199880489. The next prime is 199880491. The reversal of 199880490 is 94088991.

It is an interprime number because it is at equal distance from previous prime (199880489) and next prime (199880491).

It is not an unprimeable number, because it can be changed into a prime (199880491) 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, 61266 + ... + 64445.

It is an arithmetic number, because the mean of its divisors is an integer number (15274008).

Almost surely, 2^199880490 is an apocalyptic number.

199880490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199880490 is an abundant number, since it is smaller than the sum of its proper divisors (288887766).

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

199880490 is a wasteful number, since it uses less digits than its factorization.

199880490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125774.

The product of its (nonzero) digits is 186624, while the sum is 48.

The square root of 199880490 is about 14137.9096757618. The cubic root of 199880490 is about 584.6870413134.

The spelling of 199880490 in words is "one hundred ninety-nine million, eight hundred eighty thousand, four hundred ninety".