2390718261 has 8 divisors (see below), whose sum is σ = 3209018400. Its totient is φ = 1583115152.

The previous prime is 2390718199. The next prime is 2390718289. The reversal of 2390718261 is 1628170932.

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 2390718261 - 2¹⁴ = 2390701877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2390718661) 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, 2673735 + ... + 2674628.

It is an arithmetic number, because the mean of its divisors is an integer number (401127300).

Almost surely, 2^2390718261 is an apocalyptic number.

It is an amenable number.

2390718261 is a deficient number, since it is larger than the sum of its proper divisors (818300139).

2390718261 is a wasteful number, since it uses less digits than its factorization.

2390718261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348515.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2390718261 is about 48894.9717353431. The cubic root of 2390718261 is about 1337.1376976117.

The spelling of 2390718261 in words is "two billion, three hundred ninety million, seven hundred eighteen thousand, two hundred sixty-one".