40320326 has 8 divisors (see below), whose sum is σ = 61887144. Its totient is φ = 19691280.

The previous prime is 40320323. The next prime is 40320331. The reversal of 40320326 is 62302304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40320298 and 40320307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320323) 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, 234335 + ... + 234506.

It is an arithmetic number, because the mean of its divisors is an integer number (7735893).

Almost surely, 2^40320326 is an apocalyptic number.

40320326 is a deficient number, since it is larger than the sum of its proper divisors (21566818).

40320326 is a wasteful number, since it uses less digits than its factorization.

40320326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468886.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 40320326 is about 6349.8288165903. The cubic root of 40320326 is about 342.9056794546.

The spelling of 40320326 in words is "forty million, three hundred twenty thousand, three hundred twenty-six".