2490405 has 8 divisors (see below), whose sum is σ = 3984672. Its totient is φ = 1328208.

The previous prime is 2490391. The next prime is 2490413. The reversal of 2490405 is 5040942.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2490405 - 2¹⁰ = 2489381 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82999 + ... + 83028.

It is an arithmetic number, because the mean of its divisors is an integer number (498084).

2^2490405 is an apocalyptic number.

It is an amenable number.

2490405 is a deficient number, since it is larger than the sum of its proper divisors (1494267).

2490405 is a wasteful number, since it uses less digits than its factorization.

2490405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166035.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 2490405 is about 1578.1017077489. The cubic root of 2490405 is about 135.5470259745.

The spelling of 2490405 in words is "two million, four hundred ninety thousand, four hundred five".