73431838 has 8 divisors (see below), whose sum is σ = 110257488. Its totient is φ = 36679344.

The previous prime is 73431833. The next prime is 73431851. The reversal of 73431838 is 83813437.

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

It is a junction number, because it is equal to n+sod(n) for n = 73431797 and 73431806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73431833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15706 + ... + 19837.

It is an arithmetic number, because the mean of its divisors is an integer number (13782186).

Almost surely, 2^73431838 is an apocalyptic number.

73431838 is a deficient number, since it is larger than the sum of its proper divisors (36825650).

73431838 is a wasteful number, since it uses less digits than its factorization.

73431838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36578.

The product of its digits is 48384, while the sum is 37.

The square root of 73431838 is about 8569.2378891008. The cubic root of 73431838 is about 418.7564083671.

The spelling of 73431838 in words is "seventy-three million, four hundred thirty-one thousand, eight hundred thirty-eight".