2651264 has 64 divisors (see below), whose sum is σ = 6609600. Its totient is φ = 1029120.

The previous prime is 2651239. The next prime is 2651273. The reversal of 2651264 is 4621562.

2651264 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9722 + ... + 9990.

It is an arithmetic number, because the mean of its divisors is an integer number (103275).

2^2651264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2651264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3304800).

2651264 is an abundant number, since it is smaller than the sum of its proper divisors (3958336).

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

2651264 is a wasteful number, since it uses less digits than its factorization.

2651264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301 (or 289 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 2651264 is about 1628.2702478397. The cubic root of 2651264 is about 138.4047488542.

The spelling of 2651264 in words is "two million, six hundred fifty-one thousand, two hundred sixty-four".