2490761 has 16 divisors (see below), whose sum is σ = 3107328. Its totient is φ = 1944000.

The previous prime is 2490743. The next prime is 2490769. The reversal of 2490761 is 1670942.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2490761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2490769) 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 15 ways as a sum of consecutive naturals, for example, 9056 + ... + 9326.

It is an arithmetic number, because the mean of its divisors is an integer number (194208).

2^2490761 is an apocalyptic number.

It is an amenable number.

2490761 is a deficient number, since it is larger than the sum of its proper divisors (616567).

2490761 is a wasteful number, since it uses less digits than its factorization.

2490761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 2490761 is about 1578.2144974622. The cubic root of 2490761 is about 135.5534844210.

The spelling of 2490761 in words is "two million, four hundred ninety thousand, seven hundred sixty-one".