73026405 has 24 divisors (see below), whose sum is σ = 133242720. Its totient is φ = 36897120.

The previous prime is 73026389. The next prime is 73026461. The reversal of 73026405 is 50462037.

It is a happy number.

It is not a de Polignac number, because 73026405 - 2⁴ = 73026389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41851 + ... + 43560.

It is an arithmetic number, because the mean of its divisors is an integer number (5551780).

Almost surely, 2^73026405 is an apocalyptic number.

It is an amenable number.

73026405 is a deficient number, since it is larger than the sum of its proper divisors (60216315).

73026405 is a wasteful number, since it uses less digits than its factorization.

73026405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85441 (or 85438 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 73026405 is about 8545.5488413559. The cubic root of 73026405 is about 417.9843041808.

The spelling of 73026405 in words is "seventy-three million, twenty-six thousand, four hundred five".