73212342 has 32 divisors (see below), whose sum is σ = 168480000. Its totient is φ = 20775648.

The previous prime is 73212329. The next prime is 73212343. The reversal of 73212342 is 24321237.

It is a super-2 number, since 2×73212342² = 10720094042249928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73212343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 409 + ... + 12107.

It is an arithmetic number, because the mean of its divisors is an integer number (5265000).

Almost surely, 2^73212342 is an apocalyptic number.

73212342 is an abundant number, since it is smaller than the sum of its proper divisors (95267658).

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

73212342 is a wasteful number, since it uses less digits than its factorization.

73212342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11860.

The product of its digits is 2016, while the sum is 24.

The square root of 73212342 is about 8556.4210976319. The cubic root of 73212342 is about 418.3387553287.

Adding to 73212342 its reverse (24321237), we get a palindrome (97533579).

The spelling of 73212342 in words is "seventy-three million, two hundred twelve thousand, three hundred forty-two".