73040061 has 8 divisors (see below), whose sum is σ = 100528384. Its totient is φ = 47122560.

The previous prime is 73040057. The next prime is 73040063. The reversal of 73040061 is 16004037.

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

It is not a de Polignac number, because 73040061 - 2² = 73040057 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73040063) 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, 392596 + ... + 392781.

It is an arithmetic number, because the mean of its divisors is an integer number (12566048).

Almost surely, 2^73040061 is an apocalyptic number.

It is an amenable number.

73040061 is a deficient number, since it is larger than the sum of its proper divisors (27488323).

73040061 is a wasteful number, since it uses less digits than its factorization.

73040061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785411.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 73040061 is about 8546.3478164652. The cubic root of 73040061 is about 418.0103570307.

Adding to 73040061 its reverse (16004037), we get a palindrome (89044098).

The spelling of 73040061 in words is "seventy-three million, forty thousand, sixty-one".