40646450376 has 256 divisors, whose sum is σ = 130856601600. Its totient is φ = 11450564352.

The previous prime is 40646450363. The next prime is 40646450393. The reversal of 40646450376 is 67305464604.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44813715 + ... + 44814621.

It is an arithmetic number, because the mean of its divisors is an integer number (511158600).

Almost surely, 2^40646450376 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 40646450376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65428300800).

40646450376 is an abundant number, since it is smaller than the sum of its proper divisors (90210151224).

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

40646450376 is a wasteful number, since it uses less digits than its factorization.

40646450376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313 (or 1303 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 45.

The spelling of 40646450376 in words is "forty billion, six hundred forty-six million, four hundred fifty thousand, three hundred seventy-six".