180031492 has 24 divisors (see below), whose sum is σ = 331473240. Its totient is φ = 85443840.

The previous prime is 180031471. The next prime is 180031493. The reversal of 180031492 is 294130081.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42436 + 179989056 = 206^2 + 13416^2 .

It is a super-2 number, since 2×180031492² = 64822676223492128, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 180031492.

It is not an unprimeable number, because it can be changed into a prime (180031493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8767 + ... + 20902.

It is an arithmetic number, because the mean of its divisors is an integer number (13811385).

Almost surely, 2^180031492 is an apocalyptic number.

It is an amenable number.

180031492 is a deficient number, since it is larger than the sum of its proper divisors (151441748).

180031492 is a wasteful number, since it uses less digits than its factorization.

180031492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29751 (or 29749 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 180031492 is about 13417.5814512154. The cubic root of 180031492 is about 564.6545433047.

The spelling of 180031492 in words is "one hundred eighty million, thirty-one thousand, four hundred ninety-two".