2494921 has 16 divisors (see below), whose sum is σ = 2983680. Its totient is φ = 2056320.

The previous prime is 2494913. The next prime is 2494931. The reversal of 2494921 is 1294942.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2494921 - 2³ = 2494913 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2494931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10320 + ... + 10558.

It is an arithmetic number, because the mean of its divisors is an integer number (186480).

2^2494921 is an apocalyptic number.

It is an amenable number.

2494921 is a deficient number, since it is larger than the sum of its proper divisors (488759).

2494921 is a wasteful number, since it uses less digits than its factorization.

2494921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336.

The product of its digits is 5184, while the sum is 31.

The square root of 2494921 is about 1579.5318926821. The cubic root of 2494921 is about 135.6289083373.

The spelling of 2494921 in words is "two million, four hundred ninety-four thousand, nine hundred twenty-one".