2318440890 has 32 divisors (see below), whose sum is σ = 5693662656. Its totient is φ = 603872640.

The previous prime is 2318440889. The next prime is 2318440903. The reversal of 2318440890 is 980448132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 897331 + ... + 899910.

It is an arithmetic number, because the mean of its divisors is an integer number (177926958).

Almost surely, 2^2318440890 is an apocalyptic number.

2318440890 is an abundant number, since it is smaller than the sum of its proper divisors (3375221766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2318440890 is a wasteful number, since it uses less digits than its factorization.

2318440890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797294.

The product of its (nonzero) digits is 55296, while the sum is 39.

The square root of 2318440890 is about 48150.1909653534. The cubic root of 2318440890 is about 1323.5245738897.

The spelling of 2318440890 in words is "two billion, three hundred eighteen million, four hundred forty thousand, eight hundred ninety".