73145338 has 24 divisors (see below), whose sum is σ = 128241792. Its totient is φ = 31198104.

The previous prime is 73145323. The next prime is 73145341. The reversal of 73145338 is 83354137.

It is a super-2 number, since 2×73145338² = 10700480942268488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20181 + ... + 23527.

It is an arithmetic number, because the mean of its divisors is an integer number (5343408).

Almost surely, 2^73145338 is an apocalyptic number.

73145338 is a deficient number, since it is larger than the sum of its proper divisors (55096454).

73145338 is a wasteful number, since it uses less digits than its factorization.

73145338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3586 (or 3579 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 73145338 is about 8552.5047793030. The cubic root of 73145338 is about 418.2110950431.

The spelling of 73145338 in words is "seventy-three million, one hundred forty-five thousand, three hundred thirty-eight".