73531442 has 16 divisors (see below), whose sum is σ = 114374400. Its totient is φ = 35417520.

The previous prime is 73531441. The next prime is 73531481. The reversal of 73531442 is 24413537.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73531441) 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 7 ways as a sum of consecutive naturals, for example, 11609 + ... + 16787.

It is an arithmetic number, because the mean of its divisors is an integer number (7148400).

Almost surely, 2^73531442 is an apocalyptic number.

73531442 is a deficient number, since it is larger than the sum of its proper divisors (40842958).

73531442 is a wasteful number, since it uses less digits than its factorization.

73531442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5441.

The product of its digits is 10080, while the sum is 29.

The square root of 73531442 is about 8575.0476383516. The cubic root of 73531442 is about 418.9456585617.

Adding to 73531442 its reverse (24413537), we get a palindrome (97944979).

The spelling of 73531442 in words is "seventy-three million, five hundred thirty-one thousand, four hundred forty-two".