1912994100 has 108 divisors (see below), whose sum is σ = 6311818240. Its totient is φ = 483278400.

The previous prime is 1912994089. The next prime is 1912994101. The reversal of 1912994100 is 14992191.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1912994101) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 38836 + ... + 73035.

Almost surely, 2^1912994100 is an apocalyptic number.

1912994100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1912994100 is an abundant number, since it is smaller than the sum of its proper divisors (4398824140).

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

1912994100 is a wasteful number, since it uses less digits than its factorization.

1912994100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111910 (or 111900 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The square root of 1912994100 is about 43737.7880099120. The cubic root of 1912994100 is about 1241.3794265725.

The spelling of 1912994100 in words is "one billion, nine hundred twelve million, nine hundred ninety-four thousand, one hundred".