43742040880 has 40 divisors (see below), whose sum is σ = 102987604800. Its totient is φ = 17275335168.

The previous prime is 43742040841. The next prime is 43742040883. The reversal of 43742040880 is 8804024734.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×43742040880² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (43742040883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3454285 + ... + 3466924.

It is an arithmetic number, because the mean of its divisors is an integer number (2574690120).

Almost surely, 2^43742040880 is an apocalyptic number.

43742040880 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43742040880 is an abundant number, since it is smaller than the sum of its proper divisors (59245563920).

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

43742040880 is a wasteful number, since it uses less digits than its factorization.

43742040880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6921301 (or 6921295 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 40.

The spelling of 43742040880 in words is "forty-three billion, seven hundred forty-two million, forty thousand, eight hundred eighty".