190681280 has 56 divisors (see below), whose sum is σ = 462668112. Its totient is φ = 74826752.

The previous prime is 190681277. The next prime is 190681289. The reversal of 190681280 is 82186091.

It is a self number, because there is not a number n which added to its sum of digits gives 190681280.

It is not an unprimeable number, because it can be changed into a prime (190681289) 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, 11339 + ... + 22581.

Almost surely, 2^190681280 is an apocalyptic number.

190681280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190681280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231334056).

190681280 is an abundant number, since it is smaller than the sum of its proper divisors (271986832).

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

190681280 is a wasteful number, since it uses less digits than its factorization.

190681280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11313 (or 11303 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 190681280 is about 13808.7392617864. The cubic root of 190681280 is about 575.5760125725.

The spelling of 190681280 in words is "one hundred ninety million, six hundred eighty-one thousand, two hundred eighty".