2490961 has 4 divisors (see below), whose sum is σ = 2717424. Its totient is φ = 2264500.

The previous prime is 2490941. The next prime is 2490973. The reversal of 2490961 is 1690942.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2490961 - 2¹³ = 2482769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2490931) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 113215 + ... + 113236.

It is an arithmetic number, because the mean of its divisors is an integer number (679356).

2^2490961 is an apocalyptic number.

It is an amenable number.

2490961 is a deficient number, since it is larger than the sum of its proper divisors (226463).

2490961 is a wasteful number, since it uses less digits than its factorization.

2490961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226462.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 2490961 is about 1578.2778589336. The cubic root of 2490961 is about 135.5571124917.

The spelling of 2490961 in words is "two million, four hundred ninety thousand, nine hundred sixty-one".