40033970 has 8 divisors (see below), whose sum is σ = 72061164. Its totient is φ = 16013584.

The previous prime is 40033967. The next prime is 40034021. The reversal of 40033970 is 7933004.

It can be written as a sum of positive squares in 2 ways, for example, as 37002889 + 3031081 = 6083^2 + 1741^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2001689 + ... + 2001708.

Almost surely, 2^40033970 is an apocalyptic number.

40033970 is a deficient number, since it is larger than the sum of its proper divisors (32027194).

40033970 is a wasteful number, since it uses less digits than its factorization.

40033970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4003404.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 40033970 is about 6327.2403147028. The cubic root of 40033970 is about 342.0919750803.

Adding to 40033970 its reverse (7933004), we get a palindrome (47966974).

The spelling of 40033970 in words is "forty million, thirty-three thousand, nine hundred seventy".