1940474718 has 320 divisors, whose sum is σ = 5737374720. Its totient is φ = 476264448.

The previous prime is 1940474677. The next prime is 1940474719. The reversal of 1940474718 is 8174740491.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940474719) by changing a digit.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 20004846 + ... + 20004942.

It is an arithmetic number, because the mean of its divisors is an integer number (17929296).

Almost surely, 2^1940474718 is an apocalyptic number.

1940474718 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1940474718, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2868687360).

1940474718 is an abundant number, since it is smaller than the sum of its proper divisors (3796900002).

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

1940474718 is a wasteful number, since it uses less digits than its factorization.

1940474718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 1940474718 is about 44050.8197199553. The cubic root of 1940474718 is about 1247.2954256157.

It can be divided in two parts, 194047 and 4718, that added together give a triangular number (198765 = T₆₃₀).

The spelling of 1940474718 in words is "one billion, nine hundred forty million, four hundred seventy-four thousand, seven hundred eighteen".