73403406 has 12 divisors (see below), whose sum is σ = 159040752. Its totient is φ = 24467796.

The previous prime is 73403387. The next prime is 73403411. The reversal of 73403406 is 60430437.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 73403406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2038966 + ... + 2039001.

It is an arithmetic number, because the mean of its divisors is an integer number (13253396).

Almost surely, 2^73403406 is an apocalyptic number.

73403406 is an abundant number, since it is smaller than the sum of its proper divisors (85637346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73403406 is a wasteful number, since it uses less digits than its factorization.

73403406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4077975 (or 4077972 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 73403406 is about 8567.5787711582. The cubic root of 73403406 is about 418.7023554318.

The spelling of 73403406 in words is "seventy-three million, four hundred three thousand, four hundred six".