1918730896 has 20 divisors (see below), whose sum is σ = 3720976252. Its totient is φ = 958478976.

The previous prime is 1918730881. The next prime is 1918730897. The reversal of 1918730896 is 6980378191.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1611219600 + 307511296 = 40140^2 + 17536^2 .

It is not an unprimeable number, because it can be changed into a prime (1918730897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37371 + ... + 72346.

Almost surely, 2^1918730896 is an apocalyptic number.

1918730896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1918730896 is a deficient number, since it is larger than the sum of its proper divisors (1802245356).

1918730896 is a wasteful number, since it uses less digits than its factorization.

1918730896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110818 (or 110812 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 52.

The square root of 1918730896 is about 43803.3206047213. The cubic root of 1918730896 is about 1242.6190947167.

The spelling of 1918730896 in words is "one billion, nine hundred eighteen million, seven hundred thirty thousand, eight hundred ninety-six".