7318249390 has 16 divisors (see below), whose sum is σ = 13308653232. Its totient is φ = 2897121024.

The previous prime is 7318249363. The next prime is 7318249417. The reversal of 7318249390 is 939428137.

It is an interprime number because it is at equal distance from previous prime (7318249363) and next prime (7318249417).

It is a self number, because there is not a number n which added to its sum of digits gives 7318249390.

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, 3771324 + ... + 3773263.

It is an arithmetic number, because the mean of its divisors is an integer number (831790827).

Almost surely, 2^7318249390 is an apocalyptic number.

7318249390 is a deficient number, since it is larger than the sum of its proper divisors (5990403842).

7318249390 is a wasteful number, since it uses less digits than its factorization.

7318249390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7544691.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 7318249390 is about 85546.7672679687. The cubic root of 7318249390 is about 1941.4925798801.

The spelling of 7318249390 in words is "seven billion, three hundred eighteen million, two hundred forty-nine thousand, three hundred ninety".