40303323 has 24 divisors (see below), whose sum is σ = 60323328. Its totient is φ = 25909632.

The previous prime is 40303303. The next prime is 40303327. The reversal of 40303323 is 32330304.

40303323 is a `hidden beast` number, since 40 + 303 + 323 = 666.

It is not a de Polignac number, because 40303323 - 2¹³ = 40295131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 40303296 and 40303305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40303327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 41815 + ... + 42767.

It is an arithmetic number, because the mean of its divisors is an integer number (2513472).

Almost surely, 2^40303323 is an apocalyptic number.

40303323 is a deficient number, since it is larger than the sum of its proper divisors (20020005).

40303323 is a wasteful number, since it uses less digits than its factorization.

40303323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 40303323 is about 6348.4898204219. The cubic root of 40303323 is about 342.8574718003.

Adding to 40303323 its reverse (32330304), we get a palindrome (72633627).

The spelling of 40303323 in words is "forty million, three hundred three thousand, three hundred twenty-three".