43629986740 has 24 divisors (see below), whose sum is σ = 91631293992. Its totient is φ = 17450409600.

The previous prime is 43629986573. The next prime is 43629986773. The reversal of 43629986740 is 4768992634.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 22633397136 + 20996589604 = 150444^2 + 144902^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140802 + ... + 327238.

It is an arithmetic number, because the mean of its divisors is an integer number (3817970583).

Almost surely, 2^43629986740 is an apocalyptic number.

It is an amenable number.

43629986740 is an abundant number, since it is smaller than the sum of its proper divisors (48001307252).

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

43629986740 is a wasteful number, since it uses less digits than its factorization.

43629986740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198147 (or 198145 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 58.

The spelling of 43629986740 in words is "forty-three billion, six hundred twenty-nine million, nine hundred eighty-six thousand, seven hundred forty".