180098490 has 64 divisors (see below), whose sum is σ = 507814272. Its totient is φ = 40300800.

The previous prime is 180098489. The next prime is 180098509. The reversal of 180098490 is 94890081.

It is a super-2 number, since 2×180098490² = 64870932200560200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16701 + ... + 25280.

It is an arithmetic number, because the mean of its divisors is an integer number (7934598).

Almost surely, 2^180098490 is an apocalyptic number.

180098490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

180098490 is an abundant number, since it is smaller than the sum of its proper divisors (327715782).

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

180098490 is a wasteful number, since it uses less digits than its factorization.

180098490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42015.

The product of its (nonzero) digits is 20736, while the sum is 39.

The square root of 180098490 is about 13420.0778686265. The cubic root of 180098490 is about 564.7245792612.

The spelling of 180098490 in words is "one hundred eighty million, ninety-eight thousand, four hundred ninety".