43904033849 has 16 divisors (see below), whose sum is σ = 48809050752. Its totient is φ = 39233956608.

The previous prime is 43904033827. The next prime is 43904033857. The reversal of 43904033849 is 94833040934.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 43904033849 - 2¹⁶ = 43903968313 is a prime.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43904033819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284357 + ... + 410690.

It is an arithmetic number, because the mean of its divisors is an integer number (3050565672).

Almost surely, 2^43904033849 is an apocalyptic number.

It is an amenable number.

43904033849 is a deficient number, since it is larger than the sum of its proper divisors (4905016903).

43904033849 is a wasteful number, since it uses less digits than its factorization.

43904033849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695216.

The product of its (nonzero) digits is 1119744, while the sum is 47.

The spelling of 43904033849 in words is "forty-three billion, nine hundred four million, thirty-three thousand, eight hundred forty-nine".