2911980 has 24 divisors (see below), whose sum is σ = 8153712. Its totient is φ = 776512.

The previous prime is 2911973. The next prime is 2912009. The reversal of 2911980 is 891192.

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

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24207 + ... + 24326.

It is an arithmetic number, because the mean of its divisors is an integer number (339738).

2^2911980 is an apocalyptic number.

2911980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2911980 is an abundant number, since it is smaller than the sum of its proper divisors (5241732).

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

2911980 is a wasteful number, since it uses less digits than its factorization.

2911980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48545 (or 48543 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 2911980 is about 1706.4524605157. The cubic root of 2911980 is about 142.8004127129.

The spelling of 2911980 in words is "two million, nine hundred eleven thousand, nine hundred eighty".