73047424 has 16 divisors (see below), whose sum is σ = 145524420. Its totient is φ = 36523648.

The previous prime is 73047421. The next prime is 73047431. The reversal of 73047424 is 42474037.

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73047421) 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 as a sum of consecutive naturals, namely, 285214 + ... + 285469.

Almost surely, 2^73047424 is an apocalyptic number.

It is an amenable number.

73047424 is a deficient number, since it is larger than the sum of its proper divisors (72476996).

73047424 is an equidigital number, since it uses as much as digits as its factorization.

73047424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570697 (or 570685 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 73047424 is about 8546.7785744104. The cubic root of 73047424 is about 418.0244027785.

The spelling of 73047424 in words is "seventy-three million, forty-seven thousand, four hundred twenty-four".