1972180 has 24 divisors (see below), whose sum is σ = 4733568. Its totient is φ = 676128.

The previous prime is 1972177. The next prime is 1972207. The reversal of 1972180 is 812791.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6904 + ... + 7183.

It is an arithmetic number, because the mean of its divisors is an integer number (197232).

2^1972180 is an apocalyptic number.

1972180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1972180 is an abundant number, since it is smaller than the sum of its proper divisors (2761388).

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

1972180 is a wasteful number, since it uses less digits than its factorization.

1972180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14103 (or 14101 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1972180 is about 1404.3432628813. The cubic root of 1972180 is about 125.4051918043.

The spelling of 1972180 in words is "one million, nine hundred seventy-two thousand, one hundred eighty".