2521964 has 12 divisors (see below), whose sum is σ = 4437888. Its totient is φ = 1254000.

The previous prime is 2521949. The next prime is 2521969. The reversal of 2521964 is 4691252.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2521969) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 887 + ... + 2414.

It is an arithmetic number, because the mean of its divisors is an integer number (369824).

2^2521964 is an apocalyptic number.

It is an amenable number.

2521964 is a deficient number, since it is larger than the sum of its proper divisors (1915924).

2521964 is a wasteful number, since it uses less digits than its factorization.

2521964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3496 (or 3494 counting only the distinct ones).

The product of its digits is 4320, while the sum is 29.

The square root of 2521964 is about 1588.0692680107. The cubic root of 2521964 is about 136.1171856175.

The spelling of 2521964 in words is "two million, five hundred twenty-one thousand, nine hundred sixty-four".