199370880 has 96 divisors (see below), whose sum is σ = 688472460. Its totient is φ = 53164032.

The previous prime is 199370879. The next prime is 199370881. The reversal of 199370880 is 88073991.

It is an interprime number because it is at equal distance from previous prime (199370879) and next prime (199370881).

It can be written as a sum of positive squares in 2 ways, for example, as 195776064 + 3594816 = 13992^2 + 1896^2 .

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (199370881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11547 + ... + 23066.

Almost surely, 2^199370880 is an apocalyptic number.

199370880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199370880 is an abundant number, since it is smaller than the sum of its proper divisors (489101580).

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

199370880 is a wasteful number, since it uses less digits than its factorization.

199370880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34638 (or 34623 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 199370880 is about 14119.8753535575. The cubic root of 199370880 is about 584.1897175575.

The spelling of 199370880 in words is "one hundred ninety-nine million, three hundred seventy thousand, eight hundred eighty".