73404131 has 8 divisors (see below), whose sum is σ = 74592000. Its totient is φ = 72220680.

The previous prime is 73404103. The next prime is 73404143. The reversal of 73404131 is 13140437.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 73404131 - 2²² = 69209827 is a prime.

It is a super-2 number, since 2×73404131² = 10776332895730322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73404097 and 73404106.

It is not an unprimeable number, because it can be changed into a prime (73404101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51770 + ... + 53168.

It is an arithmetic number, because the mean of its divisors is an integer number (9324000).

Almost surely, 2^73404131 is an apocalyptic number.

73404131 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

73404131 is a deficient number, since it is larger than the sum of its proper divisors (1187869).

73404131 is a wasteful number, since it uses less digits than its factorization.

73404131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 73404131 is about 8567.6210817239. The cubic root of 73404131 is about 418.7037339246.

Adding to 73404131 its reverse (13140437), we get a palindrome (86544568).

The spelling of 73404131 in words is "seventy-three million, four hundred four thousand, one hundred thirty-one".