40033330 has 8 divisors (see below), whose sum is σ = 72060012. Its totient is φ = 16013328.

The previous prime is 40033309. The next prime is 40033333. The reversal of 40033330 is 3333004.

It can be written as a sum of positive squares in 2 ways, for example, as 40030929 + 2401 = 6327^2 + 49^2 .

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

It is not an unprimeable number, because it can be changed into a prime (40033333) 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, 2001657 + ... + 2001676.

Almost surely, 2^40033330 is an apocalyptic number.

40033330 is a deficient number, since it is larger than the sum of its proper divisors (32026682).

40033330 is a wasteful number, since it uses less digits than its factorization.

40033330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003340.

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

The square root of 40033330 is about 6327.1897395289. The cubic root of 40033330 is about 342.0901521281.

Adding to 40033330 its reverse (3333004), we get a palindrome (43366334).

The spelling of 40033330 in words is "forty million, thirty-three thousand, three hundred thirty".