73134428 has 6 divisors (see below), whose sum is σ = 127985256. Its totient is φ = 36567212.

The previous prime is 73134421. The next prime is 73134431. The reversal of 73134428 is 82443137.

It is a junction number, because it is equal to n+sod(n) for n = 73134394 and 73134403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73134421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9141800 + ... + 9141807.

It is an arithmetic number, because the mean of its divisors is an integer number (21330876).

Almost surely, 2^73134428 is an apocalyptic number.

It is an amenable number.

73134428 is a deficient number, since it is larger than the sum of its proper divisors (54850828).

73134428 is a wasteful number, since it uses less digits than its factorization.

73134428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18283611 (or 18283609 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 73134428 is about 8551.8669306766. The cubic root of 73134428 is about 418.1903012371.

The spelling of 73134428 in words is "seventy-three million, one hundred thirty-four thousand, four hundred twenty-eight".