72030441 has 12 divisors (see below), whose sum is σ = 111720912. Its totient is φ = 41160168.

The previous prime is 72030437. The next prime is 72030449. The reversal of 72030441 is 14403027.

It is not a de Polignac number, because 72030441 - 2² = 72030437 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (72030449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 244855 + ... + 245148.

It is an arithmetic number, because the mean of its divisors is an integer number (9310076).

Almost surely, 2^72030441 is an apocalyptic number.

It is an amenable number.

72030441 is a deficient number, since it is larger than the sum of its proper divisors (39690471).

72030441 is a wasteful number, since it uses less digits than its factorization.

72030441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490020 (or 490013 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 72030441 is about 8487.0749378098. The cubic root of 72030441 is about 416.0753858234.

Adding to 72030441 its reverse (14403027), we get a palindrome (86433468).

The spelling of 72030441 in words is "seventy-two million, thirty thousand, four hundred forty-one".