190087680 has 160 divisors (see below), whose sum is σ = 620478144. Its totient is φ = 49627136.

The previous prime is 190087669. The next prime is 190087687. The reversal of 190087680 is 86780091.

It is a tau number, because it is divible by the number of its divisors (160).

It is a super-2 number, since 2×190087680² = 72266652175564800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (190087687) 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, 406807 + ... + 407273.

Almost surely, 2^190087680 is an apocalyptic number.

190087680 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 190087680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (310239072).

190087680 is an abundant number, since it is smaller than the sum of its proper divisors (430390464).

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

190087680 is an equidigital number, since it uses as much as digits as its factorization.

190087680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 546 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 190087680 is about 13787.2288731275. The cubic root of 190087680 is about 574.9781264521.

The spelling of 190087680 in words is "one hundred ninety million, eighty-seven thousand, six hundred eighty".