40046442438 has 8 divisors (see below), whose sum is σ = 80092884888. Its totient is φ = 13348814144.

The previous prime is 40046442437. The next prime is 40046442473. The reversal of 40046442438 is 83424464004.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

40046442438 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 40046442396 and 40046442405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40046442431) 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 in 3 ways as a sum of consecutive naturals, for example, 3337203531 + ... + 3337203542.

It is an arithmetic number, because the mean of its divisors is an integer number (10011610611).

Almost surely, 2^40046442438 is an apocalyptic number.

40046442438 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40046442438 is a wasteful number, since it uses less digits than its factorization.

40046442438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6674407078.

The product of its (nonzero) digits is 294912, while the sum is 39.

The spelling of 40046442438 in words is "forty billion, forty-six million, four hundred forty-two thousand, four hundred thirty-eight".