912493840 has 40 divisors (see below), whose sum is σ = 2122810560. Its totient is φ = 364780416.

The previous prime is 912493817. The next prime is 912493847. The reversal of 912493840 is 48394219.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 912493793 and 912493802.

It is not an unprimeable number, because it can be changed into a prime (912493847) 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 7 ways as a sum of consecutive naturals, for example, 243501 + ... + 247219.

It is an arithmetic number, because the mean of its divisors is an integer number (53070264).

Almost surely, 2^912493840 is an apocalyptic number.

It is an amenable number.

912493840 is an abundant number, since it is smaller than the sum of its proper divisors (1210316720).

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

912493840 is a wasteful number, since it uses less digits than its factorization.

912493840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6799 (or 6793 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 912493840 is about 30207.5129727689. The cubic root of 912493840 is about 969.9365247017.

The spelling of 912493840 in words is "nine hundred twelve million, four hundred ninety-three thousand, eight hundred forty".