43499396 has 12 divisors (see below), whose sum is σ = 80601948. Its totient is φ = 20470272.

The previous prime is 43499389. The next prime is 43499399. The reversal of 43499396 is 69399434.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39942400 + 3556996 = 6320^2 + 1886^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 43499396.

It is not an unprimeable number, because it can be changed into a prime (43499399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319781 + ... + 319916.

It is an arithmetic number, because the mean of its divisors is an integer number (6716829).

Almost surely, 2^43499396 is an apocalyptic number.

It is an amenable number.

43499396 is a deficient number, since it is larger than the sum of its proper divisors (37102552).

43499396 is a wasteful number, since it uses less digits than its factorization.

43499396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639718 (or 639716 counting only the distinct ones).

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

The square root of 43499396 is about 6595.4071898557. The cubic root of 43499396 is about 351.6908550356.

The spelling of 43499396 in words is "forty-three million, four hundred ninety-nine thousand, three hundred ninety-six".