2115408394 has 24 divisors (see below), whose sum is σ = 3639454560. Its totient is φ = 919740360.

The previous prime is 2115408391. The next prime is 2115408397. The reversal of 2115408394 is 4938045112.

It is an interprime number because it is at equal distance from previous prime (2115408391) and next prime (2115408397).

It is not an unprimeable number, because it can be changed into a prime (2115408391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 184464 + ... + 195595.

It is an arithmetic number, because the mean of its divisors is an integer number (151643940).

Almost surely, 2^2115408394 is an apocalyptic number.

2115408394 is a deficient number, since it is larger than the sum of its proper divisors (1524046166).

2115408394 is a wasteful number, since it uses less digits than its factorization.

2115408394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380106 (or 380095 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 2115408394 is about 45993.5690504662. The cubic root of 2115408394 is about 1283.7035467061.

The spelling of 2115408394 in words is "two billion, one hundred fifteen million, four hundred eight thousand, three hundred ninety-four".