73138429 has 24 divisors (see below), whose sum is σ = 96462240. Its totient is φ = 54813024.

The previous prime is 73138421. The next prime is 73138441. The reversal of 73138429 is 92483137.

It is not a de Polignac number, because 73138429 - 2³ = 73138421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73138421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9082 + ... + 15124.

It is an arithmetic number, because the mean of its divisors is an integer number (4019260).

Almost surely, 2^73138429 is an apocalyptic number.

It is an amenable number.

73138429 is a deficient number, since it is larger than the sum of its proper divisors (23323811).

73138429 is a wasteful number, since it uses less digits than its factorization.

73138429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6089 (or 6082 counting only the distinct ones).

The product of its digits is 36288, while the sum is 37.

The square root of 73138429 is about 8552.1008530068. The cubic root of 73138429 is about 418.1979271434.

The spelling of 73138429 in words is "seventy-three million, one hundred thirty-eight thousand, four hundred twenty-nine".