1218770418 has 32 divisors (see below), whose sum is σ = 2451762432. Its totient is φ = 403894400.

The previous prime is 1218770407. The next prime is 1218770419. The reversal of 1218770418 is 8140778121.

1218770418 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1218770419) 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, 1337383 + ... + 1338293.

It is an arithmetic number, because the mean of its divisors is an integer number (76617576).

Almost surely, 2^1218770418 is an apocalyptic number.

1218770418 is an abundant number, since it is smaller than the sum of its proper divisors (1232992014).

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

1218770418 is a wasteful number, since it uses less digits than its factorization.

1218770418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1970.

The product of its (nonzero) digits is 25088, while the sum is 39.

The square root of 1218770418 is about 34910.8925408675. The cubic root of 1218770418 is about 1068.1706354609.

The spelling of 1218770418 in words is "one billion, two hundred eighteen million, seven hundred seventy thousand, four hundred eighteen".