190251280 has 40 divisors (see below), whose sum is σ = 444685824. Its totient is φ = 75696000.

The previous prime is 190251251. The next prime is 190251283. The reversal of 190251280 is 82152091.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (190251283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9055 + ... + 21505.

Almost surely, 2^190251280 is an apocalyptic number.

190251280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190251280 is an abundant number, since it is smaller than the sum of its proper divisors (254434544).

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

190251280 is a wasteful number, since it uses less digits than its factorization.

190251280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12655 (or 12649 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 190251280 is about 13793.1606240194. The cubic root of 190251280 is about 575.1430318405.

The spelling of 190251280 in words is "one hundred ninety million, two hundred fifty-one thousand, two hundred eighty".