40438683404 has 48 divisors (see below), whose sum is σ = 81847293696. Its totient is φ = 17123736000.

The previous prime is 40438683379. The next prime is 40438683407.

40438683404 is nontrivially palindromic in base 10.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (40438683407) 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 15 ways as a sum of consecutive naturals, for example, 1373987 + ... + 1403109.

It is an arithmetic number, because the mean of its divisors is an integer number (1705151952).

Almost surely, 2^40438683404 is an apocalyptic number.

It is an amenable number.

40438683404 is an abundant number, since it is smaller than the sum of its proper divisors (41408610292).

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

40438683404 is a wasteful number, since it uses less digits than its factorization.

40438683404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29726 (or 29724 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 44.

The spelling of 40438683404 in words is "forty billion, four hundred thirty-eight million, six hundred eighty-three thousand, four hundred four".