40303330 has 16 divisors (see below), whose sum is σ = 75048120. Its totient is φ = 15565312.

The previous prime is 40303327. The next prime is 40303339. The reversal of 40303330 is 3330304.

It can be written as a sum of positive squares in 4 ways, for example, as 18931201 + 21372129 = 4351^2 + 4623^2 .

It is not an unprimeable number, because it can be changed into a prime (40303339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69199 + ... + 69778.

Almost surely, 2^40303330 is an apocalyptic number.

40303330 is a deficient number, since it is larger than the sum of its proper divisors (34744790).

40303330 is a wasteful number, since it uses less digits than its factorization.

40303330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139013.

The product of its (nonzero) digits is 324, while the sum is 16.

The square root of 40303330 is about 6348.4903717341. The cubic root of 40303330 is about 342.8574916498.

Adding to 40303330 its reverse (3330304), we get a palindrome (43633634).

The spelling of 40303330 in words is "forty million, three hundred three thousand, three hundred thirty".