180620880 has 160 divisors (see below), whose sum is σ = 630816768. Its totient is φ = 42355200.

The previous prime is 180620851. The next prime is 180620933. The reversal of 180620880 is 88026081.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent 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, 80737 + ... + 82943.

Almost surely, 2^180620880 is an apocalyptic number.

180620880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 180620880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (315408384).

180620880 is an abundant number, since it is smaller than the sum of its proper divisors (450195888).

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

180620880 is a wasteful number, since it uses less digits than its factorization.

180620880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2265 (or 2259 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 180620880 is about 13439.5267773832. The cubic root of 180620880 is about 565.2700617206.

The spelling of 180620880 in words is "one hundred eighty million, six hundred twenty thousand, eight hundred eighty".