1918073308 has 12 divisors (see below), whose sum is σ = 3434689720. Its totient is φ = 936733392.

The previous prime is 1918073299. The next prime is 1918073309. The reversal of 1918073308 is 8033708191.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1918073309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5575623 + ... + 5575966.

Almost surely, 2^1918073308 is an apocalyptic number.

It is an amenable number.

1918073308 is a deficient number, since it is larger than the sum of its proper divisors (1516616412).

1918073308 is a wasteful number, since it uses less digits than its factorization.

1918073308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11151636 (or 11151634 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 1918073308 is about 43795.8138182178. The cubic root of 1918073308 is about 1242.4771215729.

The spelling of 1918073308 in words is "one billion, nine hundred eighteen million, seventy-three thousand, three hundred eight".