43880964 has 48 divisors (see below), whose sum is σ = 109753728. Its totient is φ = 13609728.

The previous prime is 43880953. The next prime is 43880981. The reversal of 43880964 is 46908834.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

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, 8064 + ... + 12360.

It is an arithmetic number, because the mean of its divisors is an integer number (2286536).

Almost surely, 2^43880964 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 43880964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54876864).

43880964 is an abundant number, since it is smaller than the sum of its proper divisors (65872764).

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

43880964 is a wasteful number, since it uses less digits than its factorization.

43880964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 4362 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 43880964 is about 6624.2708277968. The cubic root of 43880964 is about 352.7161834712.

It can be divided in two parts, 43880 and 964, that added together give a palindrome (44844).

The spelling of 43880964 in words is "forty-three million, eight hundred eighty thousand, nine hundred sixty-four".