916785492 has 144 divisors (see below), whose sum is σ = 2637129600. Its totient is φ = 247750272.

The previous prime is 916785421. The next prime is 916785521. The reversal of 916785492 is 294587619.

Its product of digits (1088640) is a multiple of the sum of its prime divisors (648).

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1485568 + ... + 1486184.

It is an arithmetic number, because the mean of its divisors is an integer number (18313400).

Almost surely, 2^916785492 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 916785492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1318564800).

916785492 is an abundant number, since it is smaller than the sum of its proper divisors (1720344108).

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

916785492 is a wasteful number, since it uses less digits than its factorization.

916785492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 648 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 51.

The square root of 916785492 is about 30278.4658131815. The cubic root of 916785492 is about 971.4547527093.

The spelling of 916785492 in words is "nine hundred sixteen million, seven hundred eighty-five thousand, four hundred ninety-two".