1956994218 has 24 divisors (see below), whose sum is σ = 4253977728. Its totient is φ = 650204712.

The previous prime is 1956994183. The next prime is 1956994279. The reversal of 1956994218 is 8124996591.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 171546 + ... + 182597.

It is an arithmetic number, because the mean of its divisors is an integer number (177249072).

Almost surely, 2^1956994218 is an apocalyptic number.

1956994218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1956994218 is an abundant number, since it is smaller than the sum of its proper divisors (2296983510).

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

1956994218 is a wasteful number, since it uses less digits than its factorization.

1956994218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354458 (or 354455 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 54.

The square root of 1956994218 is about 44237.9273700747. The cubic root of 1956994218 is about 1250.8248887005.

The spelling of 1956994218 in words is "one billion, nine hundred fifty-six million, nine hundred ninety-four thousand, two hundred eighteen".