2218374936 has 48 divisors (see below), whose sum is σ = 6018246000. Its totient is φ = 738209472.

The previous prime is 2218374919. The next prime is 2218374937. The reversal of 2218374936 is 6394738122.

It is a junction number, because it is equal to n+sod(n) for n = 2218374891 and 2218374900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2218374937) 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, 17410 + ... + 68846.

It is an arithmetic number, because the mean of its divisors is an integer number (125380125).

Almost surely, 2^2218374936 is an apocalyptic number.

It is an amenable number.

2218374936 is an abundant number, since it is smaller than the sum of its proper divisors (3799871064).

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

2218374936 is a wasteful number, since it uses less digits than its factorization.

2218374936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52048 (or 52041 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 2218374936 is about 47099.6277692298. The cubic root of 2218374936 is about 1304.2023645566.

The spelling of 2218374936 in words is "two billion, two hundred eighteen million, three hundred seventy-four thousand, nine hundred thirty-six".