40394234983 has 2 divisors, whose sum is σ = 40394234984. Its totient is φ = 40394234982.

The previous prime is 40394234971. The next prime is 40394235029. The reversal of 40394234983 is 38943249304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40394234983 - 2²⁵ = 40360680551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40394234383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20197117491 + 20197117492.

It is an arithmetic number, because the mean of its divisors is an integer number (20197117492).

Almost surely, 2^40394234983 is an apocalyptic number.

40394234983 is a deficient number, since it is larger than the sum of its proper divisors (1).

40394234983 is an equidigital number, since it uses as much as digits as its factorization.

40394234983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2239488, while the sum is 49.

The spelling of 40394234983 in words is "forty billion, three hundred ninety-four million, two hundred thirty-four thousand, nine hundred eighty-three".