43049089920 has 128 divisors (see below), whose sum is σ = 141645588480. Its totient is φ = 11109427200.

The previous prime is 43049089891. The next prime is 43049089957. The reversal of 43049089920 is 2998094034.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 43049089920.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 302116 + ... + 421155.

It is an arithmetic number, because the mean of its divisors is an integer number (1106606160).

Almost surely, 2^43049089920 is an apocalyptic number.

43049089920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43049089920 is an abundant number, since it is smaller than the sum of its proper divisors (98596498560).

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

43049089920 is a wasteful number, since it uses less digits than its factorization.

43049089920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723324 (or 723312 counting only the distinct ones).

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 43049089920 in words is "forty-three billion, forty-nine million, eighty-nine thousand, nine hundred twenty".