73400459 has 4 divisors (see below), whose sum is σ = 80073240. Its totient is φ = 66727680.

The previous prime is 73400449. The next prime is 73400461. The reversal of 73400459 is 95400437.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95400437 = 11 ⋅8672767.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73400459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73400449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3336374 + ... + 3336395.

It is an arithmetic number, because the mean of its divisors is an integer number (20018310).

Almost surely, 2^73400459 is an apocalyptic number.

73400459 is a deficient number, since it is larger than the sum of its proper divisors (6672781).

73400459 is a wasteful number, since it uses less digits than its factorization.

73400459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6672780.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 73400459 is about 8567.4067838524. The cubic root of 73400459 is about 418.6967520026.

The spelling of 73400459 in words is "seventy-three million, four hundred thousand, four hundred fifty-nine".