72530262 has 64 divisors (see below), whose sum is σ = 195056640. Its totient is φ = 19502208.

The previous prime is 72530261. The next prime is 72530309. The reversal of 72530262 is 26203527.

72530262 is a `hidden beast` number, since 72 + 530 + 2 + 62 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72530261) 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 31 ways as a sum of consecutive naturals, for example, 783 + ... + 12069.

It is an arithmetic number, because the mean of its divisors is an integer number (3047760).

Almost surely, 2^72530262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72530262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97528320).

72530262 is an abundant number, since it is smaller than the sum of its proper divisors (122526378).

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

72530262 is a wasteful number, since it uses less digits than its factorization.

72530262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11322 (or 11316 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 72530262 is about 8516.4700433924. The cubic root of 72530262 is about 417.0355541343.

Adding to 72530262 its reverse (26203527), we get a palindrome (98733789).

The spelling of 72530262 in words is "seventy-two million, five hundred thirty thousand, two hundred sixty-two".