72044522 has 16 divisors (see below), whose sum is σ = 120634272. Its totient is φ = 31985520.

The previous prime is 72044507. The next prime is 72044551. The reversal of 72044522 is 22544027.

It is a junction number, because it is equal to n+sod(n) for n = 72044491 and 72044500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37133 + ... + 39024.

It is an arithmetic number, because the mean of its divisors is an integer number (7539642).

Almost surely, 2^72044522 is an apocalyptic number.

72044522 is a deficient number, since it is larger than the sum of its proper divisors (48589750).

72044522 is a wasteful number, since it uses less digits than its factorization.

72044522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76213.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 72044522 is about 8487.9044528081. The cubic root of 72044522 is about 416.1024964713.

Adding to 72044522 its reverse (22544027), we get a palindrome (94588549).

The spelling of 72044522 in words is "seventy-two million, forty-four thousand, five hundred twenty-two".