1940898816 has 66 divisors (see below), whose sum is σ = 5604329822. Its totient is φ = 646963200.

The previous prime is 1940898797. The next prime is 1940898821. The reversal of 1940898816 is 6188980491.

It can be written as a sum of positive squares in only one way, i.e., 973440000 + 967458816 = 31200^2 + 31104^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 96085 + ... + 114516.

Almost surely, 2^1940898816 is an apocalyptic number.

1940898816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1940898816 is an abundant number, since it is smaller than the sum of its proper divisors (3663431006).

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

1940898816 is a wasteful number, since it uses less digits than its factorization.

1940898816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210627 (or 210606 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 54.

The square root of 1940898816 is about 44055.6331925896. The cubic root of 1940898816 is about 1247.3862860219.

The spelling of 1940898816 in words is "one billion, nine hundred forty million, eight hundred ninety-eight thousand, eight hundred sixteen".