180102020 has 48 divisors (see below), whose sum is σ = 433388928. Its totient is φ = 61585920.

The previous prime is 180102019. The next prime is 180102031. The reversal of 180102020 is 20201081.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 180101986 and 180102004.

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, 59135 + ... + 62105.

It is an arithmetic number, because the mean of its divisors is an integer number (9028936).

Almost surely, 2^180102020 is an apocalyptic number.

180102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

180102020 is an abundant number, since it is smaller than the sum of its proper divisors (253286908).

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

180102020 is a wasteful number, since it uses less digits than its factorization.

180102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3420 (or 3418 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 180102020 is about 13420.2093873382. The cubic root of 180102020 is about 564.7282688438.

The spelling of 180102020 in words is "one hundred eighty million, one hundred two thousand, twenty".