73240347 has 8 divisors (see below), whose sum is σ = 98890240. Its totient is φ = 48208680.

The previous prime is 73240319. The next prime is 73240357. The reversal of 73240347 is 74304237.

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

It is not a de Polignac number, because 73240347 - 2⁸ = 73240091 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (73240357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154279 + ... + 154752.

It is an arithmetic number, because the mean of its divisors is an integer number (12361280).

Almost surely, 2^73240347 is an apocalyptic number.

73240347 is a deficient number, since it is larger than the sum of its proper divisors (25649893).

73240347 is a wasteful number, since it uses less digits than its factorization.

73240347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309113.

The product of its (nonzero) digits is 14112, while the sum is 30.

The square root of 73240347 is about 8558.0574314502. The cubic root of 73240347 is about 418.3920891566.

The spelling of 73240347 in words is "seventy-three million, two hundred forty thousand, three hundred forty-seven".