73438345 has 8 divisors (see below), whose sum is σ = 88455240. Its totient is φ = 58531200.

The previous prime is 73438319. The next prime is 73438369. The reversal of 73438345 is 54383437.

It can be written as a sum of positive squares in 4 ways, for example, as 4149369 + 69288976 = 2037^2 + 8324^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-73438345 is a prime.

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, 25956 + ... + 28645.

It is an arithmetic number, because the mean of its divisors is an integer number (11056905).

Almost surely, 2^73438345 is an apocalyptic number.

It is an amenable number.

73438345 is a deficient number, since it is larger than the sum of its proper divisors (15016895).

73438345 is a wasteful number, since it uses less digits than its factorization.

73438345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54875.

The product of its digits is 120960, while the sum is 37.

The square root of 73438345 is about 8569.6175527266. The cubic root of 73438345 is about 418.7687770595.

The spelling of 73438345 in words is "seventy-three million, four hundred thirty-eight thousand, three hundred forty-five".