40478290944 has 352 divisors, whose sum is σ = 137393329920. Its totient is φ = 10305404928.

The previous prime is 40478290927. The next prime is 40478290987. The reversal of 40478290944 is 44909287404.

It is a super-2 number, since 2×40478290944² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8104512 + ... + 8109504.

It is an arithmetic number, because the mean of its divisors is an integer number (390321960).

Almost surely, 2^40478290944 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 40478290944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68696664960).

40478290944 is an abundant number, since it is smaller than the sum of its proper divisors (96915038976).

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

40478290944 is a wasteful number, since it uses less digits than its factorization.

40478290944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5065 (or 5047 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 40478290944 in words is "forty billion, four hundred seventy-eight million, two hundred ninety thousand, nine hundred forty-four".