180027198 has 80 divisors (see below), whose sum is σ = 440751696. Its totient is φ = 54587520.

The previous prime is 180027173. The next prime is 180027203. The reversal of 180027198 is 891720081.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 153153 + ... + 154323.

Almost surely, 2^180027198 is an apocalyptic number.

180027198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 180027198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220375848).

180027198 is an abundant number, since it is smaller than the sum of its proper divisors (260724498).

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

180027198 is a wasteful number, since it uses less digits than its factorization.

180027198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1262 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 180027198 is about 13417.4214363267. The cubic root of 180027198 is about 564.6500540052.

It can be divided in two parts, 18002 and 7198, that added together give a triangular number (25200 = T₂₂₄).

The spelling of 180027198 in words is "one hundred eighty million, twenty-seven thousand, one hundred ninety-eight".