2991264 has 24 divisors (see below), whose sum is σ = 7852320. Its totient is φ = 997056.

The previous prime is 2991253. The next prime is 2991277. The reversal of 2991264 is 4621992.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15484 + ... + 15675.

It is an arithmetic number, because the mean of its divisors is an integer number (327180).

2^2991264 is an apocalyptic number.

2991264 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2991264 is an abundant number, since it is smaller than the sum of its proper divisors (4861056).

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

2991264 is a wasteful number, since it uses less digits than its factorization.

2991264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31172 (or 31164 counting only the distinct ones).

The product of its digits is 7776, while the sum is 33.

The square root of 2991264 is about 1729.5271029967. The cubic root of 2991264 is about 144.0848265643.

The spelling of 2991264 in words is "two million, nine hundred ninety-one thousand, two hundred sixty-four".