72389043 has 48 divisors (see below), whose sum is σ = 115240320. Its totient is φ = 43610112.

The previous prime is 72389041. The next prime is 72389059. The reversal of 72389043 is 34098327.

It is not a de Polignac number, because 72389043 - 2¹ = 72389041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72388989 and 72389007.

It is not an unprimeable number, because it can be changed into a prime (72389041) 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 47 ways as a sum of consecutive naturals, for example, 640555 + ... + 640667.

It is an arithmetic number, because the mean of its divisors is an integer number (2400840).

Almost surely, 2^72389043 is an apocalyptic number.

72389043 is a deficient number, since it is larger than the sum of its proper divisors (42851277).

72389043 is a wasteful number, since it uses less digits than its factorization.

72389043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 72389043 is about 8508.1750687207. The cubic root of 72389043 is about 416.7647172626.

The spelling of 72389043 in words is "seventy-two million, three hundred eighty-nine thousand, forty-three".