2215015998 has 32 divisors (see below), whose sum is σ = 4935319200. Its totient is φ = 658041216.

The previous prime is 2215015993. The next prime is 2215016009. The reversal of 2215015998 is 8995105122.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2215015993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 487353 + ... + 491876.

It is an arithmetic number, because the mean of its divisors is an integer number (154228725).

Almost surely, 2^2215015998 is an apocalyptic number.

2215015998 is an abundant number, since it is smaller than the sum of its proper divisors (2720303202).

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

2215015998 is a wasteful number, since it uses less digits than its factorization.

2215015998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979276.

The product of its (nonzero) digits is 64800, while the sum is 42.

The square root of 2215015998 is about 47063.9564635189. The cubic root of 2215015998 is about 1303.5437822023.

The spelling of 2215015998 in words is "two billion, two hundred fifteen million, fifteen thousand, nine hundred ninety-eight".