73281434 has 8 divisors (see below), whose sum is σ = 113712660. Its totient is φ = 35377216.

The previous prime is 73281431. The next prime is 73281449. The reversal of 73281434 is 43418237.

It can be written as a sum of positive squares in 2 ways, for example, as 64561225 + 8720209 = 8035^2 + 2953^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 73281434.

It is not an unprimeable number, because it can be changed into a prime (73281431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631679 + ... + 631794.

Almost surely, 2^73281434 is an apocalyptic number.

73281434 is a deficient number, since it is larger than the sum of its proper divisors (40431226).

73281434 is a wasteful number, since it uses less digits than its factorization.

73281434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263504.

The product of its digits is 16128, while the sum is 32.

The square root of 73281434 is about 8560.4575812278. The cubic root of 73281434 is about 418.4703122623.

The spelling of 73281434 in words is "seventy-three million, two hundred eighty-one thousand, four hundred thirty-four".