40326387 has 4 divisors (see below), whose sum is σ = 53768520. Its totient is φ = 26884256.

The previous prime is 40326359. The next prime is 40326401. The reversal of 40326387 is 78362304.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40326387 - 2⁷ = 40326259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40326317) 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, 6721062 + ... + 6721067.

It is an arithmetic number, because the mean of its divisors is an integer number (13442130).

Almost surely, 2^40326387 is an apocalyptic number.

40326387 is a deficient number, since it is larger than the sum of its proper divisors (13442133).

40326387 is a wasteful number, since it uses less digits than its factorization.

40326387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13442132.

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 40326387 is about 6350.3060556165. The cubic root of 40326387 is about 342.9228605921.

The spelling of 40326387 in words is "forty million, three hundred twenty-six thousand, three hundred eighty-seven".