2115440894 has 8 divisors (see below), whose sum is σ = 3626470128. Its totient is φ = 906617520.

The previous prime is 2115440891. The next prime is 2115440903. The reversal of 2115440894 is 4980445112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115440891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75551447 + ... + 75551474.

It is an arithmetic number, because the mean of its divisors is an integer number (453308766).

Almost surely, 2^2115440894 is an apocalyptic number.

2115440894 is a deficient number, since it is larger than the sum of its proper divisors (1511029234).

2115440894 is a wasteful number, since it uses less digits than its factorization.

2115440894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151102930.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 2115440894 is about 45993.9223593727. The cubic root of 2115440894 is about 1283.7101207167.

The spelling of 2115440894 in words is "two billion, one hundred fifteen million, four hundred forty thousand, eight hundred ninety-four".