73120004 has 12 divisors (see below), whose sum is σ = 128158800. Its totient is φ = 36503208.

The previous prime is 73120001. The next prime is 73120027. The reversal of 73120004 is 40002137.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (73120001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11234 + ... + 16505.

It is an arithmetic number, because the mean of its divisors is an integer number (10679900).

Almost surely, 2^73120004 is an apocalyptic number.

It is an amenable number.

73120004 is a deficient number, since it is larger than the sum of its proper divisors (55038796).

73120004 is a wasteful number, since it uses less digits than its factorization.

73120004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28402 (or 28400 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 73120004 is about 8551.0235644629. The cubic root of 73120004 is about 418.1628067831.

The spelling of 73120004 in words is "seventy-three million, one hundred twenty thousand, four".