916843920 has 80 divisors (see below), whose sum is σ = 2854906560. Its totient is φ = 243400192.

The previous prime is 916843897. The next prime is 916843931. The reversal of 916843920 is 29348619.

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46066 + ... + 62894.

It is an arithmetic number, because the mean of its divisors is an integer number (35686332).

Almost surely, 2^916843920 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 916843920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1427453280).

916843920 is an abundant number, since it is smaller than the sum of its proper divisors (1938062640).

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

916843920 is a wasteful number, since it uses less digits than its factorization.

916843920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17072 (or 17066 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 916843920 is about 30279.4306419391. The cubic root of 916843920 is about 971.4753896533.

The spelling of 916843920 in words is "nine hundred sixteen million, eight hundred forty-three thousand, nine hundred twenty".