920180 has 24 divisors (see below), whose sum is σ = 1952160. Its totient is φ = 364320.

The previous prime is 920167. The next prime is 920197. The reversal of 920180 is 81029.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 920180.

It is an unprimeable number.

920180 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2615 + ... + 2945.

It is an arithmetic number, because the mean of its divisors is an integer number (81340).

2⁹²⁰¹⁸⁰ is an apocalyptic number.

It is an amenable number.

920180 is an abundant number, since it is smaller than the sum of its proper divisors (1031980).

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

920180 is a wasteful number, since it uses less digits than its factorization.

920180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 920180 is about 959.2601315597. The cubic root of 920180 is about 97.2652251789.

It can be divided in two parts, 920 and 180, that multiplied together give a triangular number (165600 = T₅₇₅).

The spelling of 920180 in words is "nine hundred twenty thousand, one hundred eighty".