40330272 has 96 divisors (see below), whose sum is σ = 110242944. Its totient is φ = 12902400.

The previous prime is 40330267. The next prime is 40330289. The reversal of 40330272 is 27203304.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415728 + ... + 415824.

It is an arithmetic number, because the mean of its divisors is an integer number (1148364).

Almost surely, 2^40330272 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40330272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55121472).

40330272 is an abundant number, since it is smaller than the sum of its proper divisors (69912672).

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

40330272 is a wasteful number, since it uses less digits than its factorization.

40330272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 40330272 is about 6350.6119390182. The cubic root of 40330272 is about 342.9338725096.

Adding to 40330272 its reverse (27203304), we get a palindrome (67533576).

The spelling of 40330272 in words is "forty million, three hundred thirty thousand, two hundred seventy-two".