40394451308 has 6 divisors (see below), whose sum is σ = 70690289796. Its totient is φ = 20197225652.

The previous prime is 40394451301. The next prime is 40394451311. The reversal of 40394451308 is 80315449304.

It is not an unprimeable number, because it can be changed into a prime (40394451301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5049306410 + ... + 5049306417.

It is an arithmetic number, because the mean of its divisors is an integer number (11781714966).

Almost surely, 2^40394451308 is an apocalyptic number.

It is an amenable number.

40394451308 is a deficient number, since it is larger than the sum of its proper divisors (30295838488).

40394451308 is a wasteful number, since it uses less digits than its factorization.

40394451308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10098612831 (or 10098612829 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 40394451308 in words is "forty billion, three hundred ninety-four million, four hundred fifty-one thousand, three hundred eight".