40234446634 has 4 divisors (see below), whose sum is σ = 60351669954. Its totient is φ = 20117223316.

The previous prime is 40234446617. The next prime is 40234446661. The reversal of 40234446634 is 43664443204.

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

It can be written as a sum of positive squares in only one way, i.e., 37965353409 + 2269093225 = 194847^2 + 47635^2 .

It is an unprimeable number.

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, 10058611657 + ... + 10058611660.

Almost surely, 2^40234446634 is an apocalyptic number.

40234446634 is a deficient number, since it is larger than the sum of its proper divisors (20117223320).

40234446634 is a wasteful number, since it uses less digits than its factorization.

40234446634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20117223319.

The product of its (nonzero) digits is 663552, while the sum is 40.

Adding to 40234446634 its reverse (43664443204), we get a palindrome (83898889838).

The spelling of 40234446634 in words is "forty billion, two hundred thirty-four million, four hundred forty-six thousand, six hundred thirty-four".