40526321 has 4 divisors (see below), whose sum is σ = 44210544. Its totient is φ = 36842100.

The previous prime is 40526293. The next prime is 40526323. The reversal of 40526321 is 12362504.

40526321 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 40526321 - 2⁶ = 40526257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40526323) 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, 1842095 + ... + 1842116.

It is an arithmetic number, because the mean of its divisors is an integer number (11052636).

Almost surely, 2^40526321 is an apocalyptic number.

It is an amenable number.

40526321 is a deficient number, since it is larger than the sum of its proper divisors (3684223).

40526321 is a wasteful number, since it uses less digits than its factorization.

40526321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3684222.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 40526321 is about 6366.0286678588. The cubic root of 40526321 is about 343.4886517753.

Adding to 40526321 its reverse (12362504), we get a palindrome (52888825).

The spelling of 40526321 in words is "forty million, five hundred twenty-six thousand, three hundred twenty-one".