2499481 has 8 divisors (see below), whose sum is σ = 2620800. Its totient is φ = 2380560.

The previous prime is 2499463. The next prime is 2499509. The reversal of 2499481 is 1849942.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2499481 - 2⁵ = 2499449 is a prime.

It is a super-2 number, since 2×2499481² = 12494810538722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2499481.

It is not an unprimeable number, because it can be changed into a prime (2499421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1746 + ... + 2836.

It is an arithmetic number, because the mean of its divisors is an integer number (327600).

2^2499481 is an apocalyptic number.

It is an amenable number.

2499481 is a deficient number, since it is larger than the sum of its proper divisors (121319).

2499481 is a wasteful number, since it uses less digits than its factorization.

2499481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199.

The product of its digits is 20736, while the sum is 37.

The square root of 2499481 is about 1580.9746993548. The cubic root of 2499481 is about 135.7114882948.

It can be divided in two parts, 249 and 9481, that added together give a triangular number (9730 = T₁₃₉).

The spelling of 2499481 in words is "two million, four hundred ninety-nine thousand, four hundred eighty-one".