72580442 has 16 divisors (see below), whose sum is σ = 119001312. Its totient is φ = 32926320.

The previous prime is 72580441. The next prime is 72580447. The reversal of 72580442 is 24408527.

It is a junction number, because it is equal to n+sod(n) for n = 72580399 and 72580408.

It is not an unprimeable number, because it can be changed into a prime (72580441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9293 + ... + 15215.

It is an arithmetic number, because the mean of its divisors is an integer number (7437582).

Almost surely, 2^72580442 is an apocalyptic number.

72580442 is a deficient number, since it is larger than the sum of its proper divisors (46420870).

72580442 is a wasteful number, since it uses less digits than its factorization.

72580442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493.

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 72580442 is about 8519.4155902855. The cubic root of 72580442 is about 417.1317071942.

Adding to 72580442 its reverse (24408527), we get a palindrome (96988969).

The spelling of 72580442 in words is "seventy-two million, five hundred eighty thousand, four hundred forty-two".