73049281 has 8 divisors (see below), whose sum is σ = 77237280. Its totient is φ = 68895648.

The previous prime is 73049267. The next prime is 73049297. The reversal of 73049281 is 18294037.

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

It is a cyclic number.

It is not a de Polignac number, because 73049281 - 2⁹ = 73048769 is a prime.

It is a super-2 number, since 2×73049281² = 10672394909233922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (73049201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4156 + ... + 12781.

It is an arithmetic number, because the mean of its divisors is an integer number (9654660).

Almost surely, 2^73049281 is an apocalyptic number.

It is an amenable number.

73049281 is a deficient number, since it is larger than the sum of its proper divisors (4187999).

73049281 is a wasteful number, since it uses less digits than its factorization.

73049281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17183.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 73049281 is about 8546.8872111430. The cubic root of 73049281 is about 418.0279450652.

The spelling of 73049281 in words is "seventy-three million, forty-nine thousand, two hundred eighty-one".