1172980 has 24 divisors (see below), whose sum is σ = 2483712. Its totient is φ = 465312.

The previous prime is 1172959. The next prime is 1172981. The reversal of 1172980 is 892711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1172981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4329 + ... + 4591.

It is an arithmetic number, because the mean of its divisors is an integer number (103488).

2^1172980 is an apocalyptic number.

1172980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1172980 is an abundant number, since it is smaller than the sum of its proper divisors (1310732).

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

1172980 is a wasteful number, since it uses less digits than its factorization.

1172980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495 (or 493 counting only the distinct ones).

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

The square root of 1172980 is about 1083.0420121122. The cubic root of 1172980 is about 105.4622102849.

The spelling of 1172980 in words is "one million, one hundred seventy-two thousand, nine hundred eighty".