2490407509 has 8 divisors (see below), whose sum is σ = 2595092760. Its totient is φ = 2386976256.

The previous prime is 2490407477. The next prime is 2490407519. The reversal of 2490407509 is 9057040942.

It can be written as a sum of positive squares in 4 ways, for example, as 908118225 + 1582289284 = 30135^2 + 39778^2 .

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 2490407509 - 2⁵ = 2490407477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2490407519) 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, 309444 + ... + 317389.

It is an arithmetic number, because the mean of its divisors is an integer number (324386595).

Almost surely, 2^2490407509 is an apocalyptic number.

2490407509 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2490407509 is a deficient number, since it is larger than the sum of its proper divisors (104685251).

2490407509 is a wasteful number, since it uses less digits than its factorization.

2490407509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 626999.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 2490407509 is about 49903.9828971596. The cubic root of 2490407509 is about 1355.4707149418.

The spelling of 2490407509 in words is "two billion, four hundred ninety million, four hundred seven thousand, five hundred nine".