73744738 has 16 divisors (see below), whose sum is σ = 120456000. Its totient is φ = 33726672.

The previous prime is 73744729. The next prime is 73744751. The reversal of 73744738 is 83744737.

It is a junction number, because it is equal to n+sod(n) for n = 73744694 and 73744703.

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, 32358 + ... + 34561.

It is an arithmetic number, because the mean of its divisors is an integer number (7528500).

Almost surely, 2^73744738 is an apocalyptic number.

73744738 is a deficient number, since it is larger than the sum of its proper divisors (46711262).

73744738 is a wasteful number, since it uses less digits than its factorization.

73744738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66969.

The product of its digits is 395136, while the sum is 43.

The square root of 73744738 is about 8587.4756477093. The cubic root of 73744738 is about 419.3503524212.

Subtracting 73744738 from its reverse (83744737), we obtain a palindrome (9999999).

The spelling of 73744738 in words is "seventy-three million, seven hundred forty-four thousand, seven hundred thirty-eight".