945811944 has 512 divisors, whose sum is σ = 3580416000. Its totient is φ = 223948800.

The previous prime is 945811943. The next prime is 945811967. The reversal of 945811944 is 449118549.

It is a happy number.

945811944 is a `hidden beast` number, since 9 + 458 + 1 + 194 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 945811944.

It is not an unprimeable number, because it can be changed into a prime (945811943) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12956292 + ... + 12956364.

It is an arithmetic number, because the mean of its divisors is an integer number (6993000).

Almost surely, 2^945811944 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 945811944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790208000).

945811944 is an abundant number, since it is smaller than the sum of its proper divisors (2634604056).

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

945811944 is a wasteful number, since it uses less digits than its factorization.

945811944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 156 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 945811944 is about 30754.0557325371. The cubic root of 945811944 is about 981.6008626196.

The spelling of 945811944 in words is "nine hundred forty-five million, eight hundred eleven thousand, nine hundred forty-four".