2918397340 has 24 divisors (see below), whose sum is σ = 6451194960. Its totient is φ = 1105918848.

The previous prime is 2918397329. The next prime is 2918397347. The reversal of 2918397340 is 437938192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2918397347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3839617 + ... + 3840376.

It is an arithmetic number, because the mean of its divisors is an integer number (268799790).

Almost surely, 2^2918397340 is an apocalyptic number.

2918397340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2918397340 is an abundant number, since it is smaller than the sum of its proper divisors (3532797620).

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

2918397340 is a wasteful number, since it uses less digits than its factorization.

2918397340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7680021 (or 7680019 counting only the distinct ones).

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

The square root of 2918397340 is about 54022.1930321234. The cubic root of 2918397340 is about 1429.0523559923.

The spelling of 2918397340 in words is "two billion, nine hundred eighteen million, three hundred ninety-seven thousand, three hundred forty".