40305504668 has 96 divisors (see below), whose sum is σ = 85732855488. Its totient is φ = 16333056000.

The previous prime is 40305504661. The next prime is 40305504677. The reversal of 40305504668 is 86640550304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40305504661) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2892518 + ... + 2906418.

It is an arithmetic number, because the mean of its divisors is an integer number (893050578).

Almost surely, 2^40305504668 is an apocalyptic number.

It is an amenable number.

40305504668 is an abundant number, since it is smaller than the sum of its proper divisors (45427350820).

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

40305504668 is a wasteful number, since it uses less digits than its factorization.

40305504668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14103 (or 14101 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 41.

The spelling of 40305504668 in words is "forty billion, three hundred five million, five hundred four thousand, six hundred sixty-eight".