40400753712 has 80 divisors (see below), whose sum is σ = 114277209600. Its totient is φ = 12197433600.

The previous prime is 40400753711. The next prime is 40400753719. The reversal of 40400753712 is 21735700404.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (40400753711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1914 + ... + 284262.

It is an arithmetic number, because the mean of its divisors is an integer number (1428465120).

Almost surely, 2^40400753712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40400753712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57138604800).

40400753712 is an abundant number, since it is smaller than the sum of its proper divisors (73876455888).

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

40400753712 is a wasteful number, since it uses less digits than its factorization.

40400753712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282642 (or 282636 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 33.

The spelling of 40400753712 in words is "forty billion, four hundred million, seven hundred fifty-three thousand, seven hundred twelve".