40446234749 has 4 divisors (see below), whose sum is σ = 40536315900. Its totient is φ = 40356153600.

The previous prime is 40446234737. The next prime is 40446234761. The reversal of 40446234749 is 94743264404.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (40446234737) and next prime (40446234761).

It can be written as a sum of positive squares in 2 ways, for example, as 29856384100 + 10589850649 = 172790^2 + 102907^2 .

It is a cyclic number.

It is not a de Polignac number, because 40446234749 - 2⁴ = 40446234733 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40446234349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45039902 + ... + 45040799.

It is an arithmetic number, because the mean of its divisors is an integer number (10134078975).

Almost surely, 2^40446234749 is an apocalyptic number.

It is an amenable number.

40446234749 is a deficient number, since it is larger than the sum of its proper divisors (90081151).

40446234749 is an equidigital number, since it uses as much as digits as its factorization.

40446234749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90081150.

The product of its (nonzero) digits is 2322432, while the sum is 47.

The spelling of 40446234749 in words is "forty billion, four hundred forty-six million, two hundred thirty-four thousand, seven hundred forty-nine".