72030570 has 16 divisors (see below), whose sum is σ = 172873440. Its totient is φ = 19208144.

The previous prime is 72030559. The next prime is 72030571. The reversal of 72030570 is 7503027.

It is a self number, because there is not a number n which added to its sum of digits gives 72030570.

It is not an unprimeable number, because it can be changed into a prime (72030571) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200480 + ... + 1200539.

It is an arithmetic number, because the mean of its divisors is an integer number (10804590).

Almost surely, 2^72030570 is an apocalyptic number.

72030570 is an abundant number, since it is smaller than the sum of its proper divisors (100842870).

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

72030570 is a wasteful number, since it uses less digits than its factorization.

72030570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401029.

The product of its (nonzero) digits is 1470, while the sum is 24.

The square root of 72030570 is about 8487.0825375979. The cubic root of 72030570 is about 416.0756342077.

Adding to 72030570 its reverse (7503027), we get a palindrome (79533597).

The spelling of 72030570 in words is "seventy-two million, thirty thousand, five hundred seventy".