40323230272 has 28 divisors (see below), whose sum is σ = 86171520316. Its totient is φ = 18610721280.

The previous prime is 40323230249. The next prime is 40323230273. The reversal of 40323230272 is 27203232304.

It can be written as a sum of positive squares in 2 ways, for example, as 23955610176 + 16367620096 = 154776^2 + 127936^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 40323230272.

It is not an unprimeable number, because it can be changed into a prime (40323230273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24231879 + ... + 24233542.

It is an arithmetic number, because the mean of its divisors is an integer number (3077554297).

Almost surely, 2^40323230272 is an apocalyptic number.

It is an amenable number.

40323230272 is an abundant number, since it is smaller than the sum of its proper divisors (45848290044).

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

40323230272 is a wasteful number, since it uses less digits than its factorization.

40323230272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48465446 (or 48465436 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 28.

Adding to 40323230272 its reverse (27203232304), we get a palindrome (67526462576).

The spelling of 40323230272 in words is "forty billion, three hundred twenty-three million, two hundred thirty thousand, two hundred seventy-two".