2490313281 has 8 divisors (see below), whose sum is σ = 3326255520. Its totient is φ = 1657289952.

The previous prime is 2490313277. The next prime is 2490313303. The reversal of 2490313281 is 1823130942.

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

It is not a de Polignac number, because 2490313281 - 2² = 2490313277 is a prime.

It is a super-2 number, since 2×2490313281² = 12403320475049969922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2490313181) 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, 727735 + ... + 731148.

It is an arithmetic number, because the mean of its divisors is an integer number (415781940).

Almost surely, 2^2490313281 is an apocalyptic number.

It is an amenable number.

2490313281 is a deficient number, since it is larger than the sum of its proper divisors (835942239).

2490313281 is a wasteful number, since it uses less digits than its factorization.

2490313281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1459455.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 2490313281 is about 49903.0387952477. The cubic root of 2490313281 is about 1355.4536193588.

The spelling of 2490313281 in words is "two billion, four hundred ninety million, three hundred thirteen thousand, two hundred eighty-one".