40343403737 has 64 divisors (see below), whose sum is σ = 52791298560. Its totient is φ = 29969049600.

The previous prime is 40343403721. The next prime is 40343403743. The reversal of 40343403737 is 73730434304.

It is not a de Polignac number, because 40343403737 - 2⁴ = 40343403721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40343403737.

It is not an unprimeable number, because it can be changed into a prime (40343403787) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61781303 + ... + 61781955.

It is an arithmetic number, because the mean of its divisors is an integer number (824864040).

Almost surely, 2^40343403737 is an apocalyptic number.

It is an amenable number.

40343403737 is a deficient number, since it is larger than the sum of its proper divisors (12447894823).

40343403737 is a wasteful number, since it uses less digits than its factorization.

40343403737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1314.

The product of its (nonzero) digits is 254016, while the sum is 38.

The spelling of 40343403737 in words is "forty billion, three hundred forty-three million, four hundred three thousand, seven hundred thirty-seven".