73042429 has 2 divisors, whose sum is σ = 73042430. Its totient is φ = 73042428.

The previous prime is 73042379. The next prime is 73042439. The reversal of 73042429 is 92424037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70476025 + 2566404 = 8395^2 + 1602^2 .

It is a cyclic number.

It is not a de Polignac number, because 73042429 - 2⁷ = 73042301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 73042429.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73042439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36521214 + 36521215.

It is an arithmetic number, because the mean of its divisors is an integer number (36521215).

Almost surely, 2^73042429 is an apocalyptic number.

It is an amenable number.

73042429 is a deficient number, since it is larger than the sum of its proper divisors (1).

73042429 is an equidigital number, since it uses as much as digits as its factorization.

73042429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 73042429 is about 8546.4863540522. The cubic root of 73042429 is about 418.0148743591.

The spelling of 73042429 in words is "seventy-three million, forty-two thousand, four hundred twenty-nine".