186481480 has 32 divisors (see below), whose sum is σ = 430926840. Its totient is φ = 72576000.

The previous prime is 186481469. The next prime is 186481487. The reversal of 186481480 is 84184681.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 173765124 + 12716356 = 13182^2 + 3566^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (186481487) 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, 61521 + ... + 64480.

Almost surely, 2^186481480 is an apocalyptic number.

186481480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

186481480 is an abundant number, since it is smaller than the sum of its proper divisors (244445360).

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

186481480 is a wasteful number, since it uses less digits than its factorization.

186481480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126049 (or 126045 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 40.

The square root of 186481480 is about 13655.8222015373. The cubic root of 186481480 is about 571.3188707271.

The spelling of 186481480 in words is "one hundred eighty-six million, four hundred eighty-one thousand, four hundred eighty".