73743738 has 16 divisors (see below), whose sum is σ = 151474080. Its totient is φ = 23916816.

The previous prime is 73743721. The next prime is 73743743. The reversal of 73743738 is 83734737.

It is a self number, because there is not a number n which added to its sum of digits gives 73743738.

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, 165868 + ... + 166311.

It is an arithmetic number, because the mean of its divisors is an integer number (9467130).

Almost surely, 2^73743738 is an apocalyptic number.

73743738 is an abundant number, since it is smaller than the sum of its proper divisors (77730342).

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

73743738 is a wasteful number, since it uses less digits than its factorization.

73743738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332221.

The product of its digits is 296352, while the sum is 42.

The square root of 73743738 is about 8587.4174231838. The cubic root of 73743738 is about 419.3484569085.

Subtracting 73743738 from its reverse (83734737), we obtain a palindrome (9990999).

The spelling of 73743738 in words is "seventy-three million, seven hundred forty-three thousand, seven hundred thirty-eight".