43399496 has 48 divisors (see below), whose sum is σ = 99658800. Its totient is φ = 17617824.

The previous prime is 43399493. The next prime is 43399501. The reversal of 43399496 is 69499334.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 43399496.

It is not an unprimeable number, because it can be changed into a prime (43399493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4535 + ... + 10361.

It is an arithmetic number, because the mean of its divisors is an integer number (2076225).

Almost surely, 2^43399496 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 43399496, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49829400).

43399496 is an abundant number, since it is smaller than the sum of its proper divisors (56259304).

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

43399496 is a wasteful number, since it uses less digits than its factorization.

43399496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5866 (or 5855 counting only the distinct ones).

The product of its digits is 629856, while the sum is 47.

The square root of 43399496 is about 6587.8293845545. The cubic root of 43399496 is about 351.4214195184.

The spelling of 43399496 in words is "forty-three million, three hundred ninety-nine thousand, four hundred ninety-six".