43999469936 has 40 divisors (see below), whose sum is σ = 89402611200. Its totient is φ = 20937445056.

The previous prime is 43999469879. The next prime is 43999469939. The reversal of 43999469936 is 63996499934.

It is a self number, because there is not a number n which added to its sum of digits gives 43999469936.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43999469939) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227180 + ... + 373643.

It is an arithmetic number, because the mean of its divisors is an integer number (2235065280).

Almost surely, 2^43999469936 is an apocalyptic number.

43999469936 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

It is an amenable number.

43999469936 is an abundant number, since it is smaller than the sum of its proper divisors (45403141264).

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

43999469936 is a wasteful number, since it uses less digits than its factorization.

43999469936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601053 (or 601047 counting only the distinct ones).

The product of its digits is 306110016, while the sum is 71.

The spelling of 43999469936 in words is "forty-three billion, nine hundred ninety-nine million, four hundred sixty-nine thousand, nine hundred thirty-six".