40324009 has 4 divisors (see below), whose sum is σ = 43989840. Its totient is φ = 36658180.

The previous prime is 40324003. The next prime is 40324013. The reversal of 40324009 is 90042304.

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 40324009 - 2⁵ = 40323977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40324003) 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, 1832899 + ... + 1832920.

It is an arithmetic number, because the mean of its divisors is an integer number (10997460).

Almost surely, 2^40324009 is an apocalyptic number.

It is an amenable number.

40324009 is a deficient number, since it is larger than the sum of its proper divisors (3665831).

40324009 is a wasteful number, since it uses less digits than its factorization.

40324009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3665830.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 40324009 is about 6350.1188177860. The cubic root of 40324009 is about 342.9161198726.

The spelling of 40324009 in words is "forty million, three hundred twenty-four thousand, nine".