73144422 has 24 divisors (see below), whose sum is σ = 170670864. Its totient is φ = 22505904.

The previous prime is 73144417. The next prime is 73144427. The reversal of 73144422 is 22444137.

It is an interprime number because it is at equal distance from previous prime (73144417) and next prime (73144427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73144427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 156058 + ... + 156525.

It is an arithmetic number, because the mean of its divisors is an integer number (7111286).

Almost surely, 2^73144422 is an apocalyptic number.

73144422 is an abundant number, since it is smaller than the sum of its proper divisors (97526442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73144422 is a wasteful number, since it uses less digits than its factorization.

73144422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312604 (or 312601 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 73144422 is about 8552.4512275721. The cubic root of 73144422 is about 418.2093492816.

Adding to 73144422 its reverse (22444137), we get a palindrome (95588559).

The spelling of 73144422 in words is "seventy-three million, one hundred forty-four thousand, four hundred twenty-two".