190538280 has 48 divisors (see below), whose sum is σ = 619250580. Its totient is φ = 50810112.

The previous prime is 190538273. The next prime is 190538291. The reversal of 190538280 is 82835091.

It can be written as a sum of positive squares in 2 ways, for example, as 164711556 + 25826724 = 12834^2 + 5082^2 .

It is a super-2 number, since 2×190538280² = 72609672290716800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 264277 + ... + 264996.

Almost surely, 2^190538280 is an apocalyptic number.

190538280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

190538280 is an abundant number, since it is smaller than the sum of its proper divisors (428712300).

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

190538280 is a wasteful number, since it uses less digits than its factorization.

190538280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529290 (or 529283 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 190538280 is about 13803.5604102710. The cubic root of 190538280 is about 575.4320936140.

The spelling of 190538280 in words is "one hundred ninety million, five hundred thirty-eight thousand, two hundred eighty".