916844544 has 624 divisors, whose sum is σ = 3680052480. Its totient is φ = 212336640.

The previous prime is 916844543. The next prime is 916844567. The reversal of 916844544 is 445448619.

916844544 is a `hidden beast` number, since 9 + 1 + 68 + 44 + 544 = 666.

It is a super-4 number, since 4×916844544⁴ (a number of 37 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 916844544.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (916844543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48254967 + ... + 48254985.

It is an arithmetic number, because the mean of its divisors is an integer number (5897520).

Almost surely, 2^916844544 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 916844544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1840026240).

916844544 is an abundant number, since it is smaller than the sum of its proper divisors (2763207936).

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

916844544 is a wasteful number, since it uses less digits than its factorization.

916844544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 59 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 916844544 is about 30279.4409459620. The cubic root of 916844544 is about 971.4756100472.

The spelling of 916844544 in words is "nine hundred sixteen million, eight hundred forty-four thousand, five hundred forty-four".