2921924 has 12 divisors (see below), whose sum is σ = 5289900. Its totient is φ = 1410528.

The previous prime is 2921923. The next prime is 2921929. The reversal of 2921924 is 4291292.

It can be written as a sum of positive squares in 2 ways, for example, as 2310400 + 611524 = 1520^2 + 782^2 .

It is a Harshad number since it is a multiple of its sum of digits (29).

It is not an unprimeable number, because it can be changed into a prime (2921921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12479 + ... + 12710.

It is an arithmetic number, because the mean of its divisors is an integer number (440825).

2^2921924 is an apocalyptic number.

It is an amenable number.

2921924 is a deficient number, since it is larger than the sum of its proper divisors (2367976).

2921924 is a wasteful number, since it uses less digits than its factorization.

2921924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25222 (or 25220 counting only the distinct ones).

The product of its digits is 2592, while the sum is 29.

The square root of 2921924 is about 1709.3636242766. The cubic root of 2921924 is about 142.9627757773.

The spelling of 2921924 in words is "two million, nine hundred twenty-one thousand, nine hundred twenty-four".