180744420 has 48 divisors (see below), whose sum is σ = 506778048. Its totient is φ = 48132480.

The previous prime is 180744407. The next prime is 180744461. The reversal of 180744420 is 24447081.

180744420 is digitally balanced in base 2, base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×180744420² = 65337090722272800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

180744420 is strictly pandigital in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55230 + ... + 58410.

It is an arithmetic number, because the mean of its divisors is an integer number (10557876).

Almost surely, 2^180744420 is an apocalyptic number.

180744420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180744420 is an abundant number, since it is smaller than the sum of its proper divisors (326033628).

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

180744420 is a wasteful number, since it uses less digits than its factorization.

180744420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140 (or 4138 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 180744420 is about 13444.1221357142. The cubic root of 180744420 is about 565.3989090389.

The spelling of 180744420 in words is "one hundred eighty million, seven hundred forty-four thousand, four hundred twenty".