72045370 has 16 divisors (see below), whose sum is σ = 129928608. Its totient is φ = 28763280.

The previous prime is 72045341. The next prime is 72045377. The reversal of 72045370 is 7354027.

It is not an unprimeable number, because it can be changed into a prime (72045377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116 + ... + 12055.

It is an arithmetic number, because the mean of its divisors is an integer number (8120538).

Almost surely, 2^72045370 is an apocalyptic number.

72045370 is a deficient number, since it is larger than the sum of its proper divisors (57883238).

72045370 is a wasteful number, since it uses less digits than its factorization.

72045370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13725.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 72045370 is about 8487.9544060981. The cubic root of 72045370 is about 416.1041290430.

Adding to 72045370 its reverse (7354027), we get a palindrome (79399397).

The spelling of 72045370 in words is "seventy-two million, forty-five thousand, three hundred seventy".