83404040438 has 8 divisors (see below), whose sum is σ = 125252044632. Its totient is φ = 41653358896.

The previous prime is 83404040351. The next prime is 83404040471.

83404040438 is nontrivially palindromic in base 10.

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

It is a super-2 number, since 2×83404040438² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 24328520 + ... + 24331947.

It is an arithmetic number, because the mean of its divisors is an integer number (15656505579).

Almost surely, 2^83404040438 is an apocalyptic number.

83404040438 is a deficient number, since it is larger than the sum of its proper divisors (41848004194).

83404040438 is a wasteful number, since it uses less digits than its factorization.

83404040438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48661326.

The product of its (nonzero) digits is 147456, while the sum is 38.

It can be divided in two parts, 834040 and 40438, that added together give a palindrome (874478).

The spelling of 83404040438 in words is "eighty-three billion, four hundred four million, forty thousand, four hundred thirty-eight".