72044112 has 60 divisors (see below), whose sum is σ = 216506976. Its totient is φ = 20583360.

The previous prime is 72044101. The next prime is 72044153. The reversal of 72044112 is 21144027.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 12964 + ... + 17667.

Almost surely, 2^72044112 is an apocalyptic number.

It is an amenable number.

72044112 is an abundant number, since it is smaller than the sum of its proper divisors (144462864).

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

72044112 is a wasteful number, since it uses less digits than its factorization.

72044112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30656 (or 30643 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 72044112 is about 8487.8803007583. The cubic root of 72044112 is about 416.1017071337.

Adding to 72044112 its reverse (21144027), we get a palindrome (93188139).

The spelling of 72044112 in words is "seventy-two million, forty-four thousand, one hundred twelve".