1994913800 has 48 divisors (see below), whose sum is σ = 5059832400. Its totient is φ = 725422400.

The previous prime is 1994913787. The next prime is 1994913803. The reversal of 1994913800 is 83194991.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (1994913803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451190 + ... + 455589.

It is an arithmetic number, because the mean of its divisors is an integer number (105413175).

Almost surely, 2^1994913800 is an apocalyptic number.

1994913800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1994913800 is an abundant number, since it is smaller than the sum of its proper divisors (3064918600).

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

1994913800 is a wasteful number, since it uses less digits than its factorization.

1994913800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906806 (or 906797 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 1994913800 is about 44664.4579055875. The cubic root of 1994913800 is about 1258.8521081662.

The spelling of 1994913800 in words is "one billion, nine hundred ninety-four million, nine hundred thirteen thousand, eight hundred".