190086520 has 64 divisors (see below), whose sum is σ = 487710720. Its totient is φ = 66054144.

The previous prime is 190086511. The next prime is 190086521. The reversal of 190086520 is 25680091.

It is a super-2 number, since 2×190086520² = 72265770171420800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (190086521) 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, 1912 + ... + 19591.

It is an arithmetic number, because the mean of its divisors is an integer number (7620480).

Almost surely, 2^190086520 is an apocalyptic number.

190086520 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 190086520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243855360).

190086520 is an abundant number, since it is smaller than the sum of its proper divisors (297624200).

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

190086520 is a wasteful number, since it uses less digits than its factorization.

190086520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21544 (or 21540 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 190086520 is about 13787.1868051463. The cubic root of 190086520 is about 574.9769568585.

The spelling of 190086520 in words is "one hundred ninety million, eighty-six thousand, five hundred twenty".