2279021018 has 16 divisors (see below), whose sum is σ = 3470765760. Its totient is φ = 1122147936.

The previous prime is 2279021011. The next prime is 2279021047. The reversal of 2279021018 is 8101209722.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2279021011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84371 + ... + 108057.

It is an arithmetic number, because the mean of its divisors is an integer number (216922860).

Almost surely, 2^2279021018 is an apocalyptic number.

2279021018 is a deficient number, since it is larger than the sum of its proper divisors (1191744742).

2279021018 is a wasteful number, since it uses less digits than its factorization.

2279021018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24421.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 2279021018 is about 47739.0931836791. The cubic root of 2279021018 is about 1315.9804680631.

The spelling of 2279021018 in words is "two billion, two hundred seventy-nine million, twenty-one thousand, eighteen".