72280362 has 64 divisors (see below), whose sum is σ = 190854144. Its totient is φ = 17667840.

The previous prime is 72280361. The next prime is 72280367. The reversal of 72280362 is 26308227.

It is not an unprimeable number, because it can be changed into a prime (72280361) 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, 3253 + ... + 12455.

It is an arithmetic number, because the mean of its divisors is an integer number (2982096).

Almost surely, 2^72280362 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72280362, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95427072).

72280362 is an abundant number, since it is smaller than the sum of its proper divisors (118573782).

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

72280362 is a wasteful number, since it uses less digits than its factorization.

72280362 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9243.

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 72280362 is about 8501.7858124044. The cubic root of 72280362 is about 416.5560434504.

Adding to 72280362 its reverse (26308227), we get a palindrome (98588589).

The spelling of 72280362 in words is "seventy-two million, two hundred eighty thousand, three hundred sixty-two".