73143418 has 16 divisors (see below), whose sum is σ = 117573120. Its totient is φ = 34004416.

The previous prime is 73143409. The next prime is 73143437. The reversal of 73143418 is 81434137.

It is a self number, because there is not a number n which added to its sum of digits gives 73143418.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10138 + ... + 15781.

It is an arithmetic number, because the mean of its divisors is an integer number (7348320).

Almost surely, 2^73143418 is an apocalyptic number.

73143418 is a deficient number, since it is larger than the sum of its proper divisors (44429702).

73143418 is a wasteful number, since it uses less digits than its factorization.

73143418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26021.

The product of its digits is 8064, while the sum is 31.

The square root of 73143418 is about 8552.3925307483. The cubic root of 73143418 is about 418.2074357882.

The spelling of 73143418 in words is "seventy-three million, one hundred forty-three thousand, four hundred eighteen".