43990968 has 128 divisors (see below), whose sum is σ = 135544320. Its totient is φ = 11612160.

The previous prime is 43990967. The next prime is 43991027. The reversal of 43990968 is 86909934.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43990967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208383 + ... + 208593.

It is an arithmetic number, because the mean of its divisors is an integer number (1058940).

Almost surely, 2^43990968 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 43990968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67772160).

43990968 is an abundant number, since it is smaller than the sum of its proper divisors (91553352).

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

43990968 is a wasteful number, since it uses less digits than its factorization.

43990968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 43990968 is about 6632.5687331531. The cubic root of 43990968 is about 353.0106757385.

It can be divided in two parts, 43 and 990968, that multiplied together give a palindrome (42611624).

The spelling of 43990968 in words is "forty-three million, nine hundred ninety thousand, nine hundred sixty-eight".