40001313032 has 32 divisors (see below), whose sum is σ = 75386910720. Its totient is φ = 19898300160.

The previous prime is 40001313017. The next prime is 40001313097. The reversal of 40001313032 is 23031310004.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 40001313032.

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, 2086193 + ... + 2105279.

It is an arithmetic number, because the mean of its divisors is an integer number (2355840960).

Almost surely, 2^40001313032 is an apocalyptic number.

It is an amenable number.

40001313032 is a deficient number, since it is larger than the sum of its proper divisors (35385597688).

40001313032 is a wasteful number, since it uses less digits than its factorization.

40001313032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20421 (or 20417 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 40001313032 its reverse (23031310004), we get a palindrome (63032623036).

The spelling of 40001313032 in words is "forty billion, one million, three hundred thirteen thousand, thirty-two".