40360321 has 4 divisors (see below), whose sum is σ = 40388544. Its totient is φ = 40332100.

The previous prime is 40360319. The next prime is 40360339. The reversal of 40360321 is 12306304.

40360321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40360321 - 2¹ = 40360319 is a prime.

It is a super-2 number, since 2×40360321² = 3257911022446082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40360361) 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 3 ways as a sum of consecutive naturals, for example, 11845 + ... + 14866.

It is an arithmetic number, because the mean of its divisors is an integer number (10097136).

Almost surely, 2^40360321 is an apocalyptic number.

It is an amenable number.

40360321 is a deficient number, since it is larger than the sum of its proper divisors (28223).

40360321 is a wasteful number, since it uses less digits than its factorization.

40360321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28222.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 40360321 is about 6352.9773335028. The cubic root of 40360321 is about 343.0190216312.

Adding to 40360321 its reverse (12306304), we get a palindrome (52666625).

The spelling of 40360321 in words is "forty million, three hundred sixty thousand, three hundred twenty-one".