180381846 has 16 divisors (see below), whose sum is σ = 362069424. Its totient is φ = 59909664.

The previous prime is 180381833. The next prime is 180381857. The reversal of 180381846 is 648183081.

It is a super-2 number, since 2×180381846² = 65075220732735432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52605 + ... + 55928.

It is an arithmetic number, because the mean of its divisors is an integer number (22629339).

Almost surely, 2^180381846 is an apocalyptic number.

180381846 is an abundant number, since it is smaller than the sum of its proper divisors (181687578).

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

180381846 is a wasteful number, since it uses less digits than its factorization.

180381846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108815.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 180381846 is about 13430.6308861498. The cubic root of 180381846 is about 565.0205918305.

The spelling of 180381846 in words is "one hundred eighty million, three hundred eighty-one thousand, eight hundred forty-six".