40002994 has 16 divisors (see below), whose sum is σ = 62272728. Its totient is φ = 19256832.

The previous prime is 40002983. The next prime is 40003001. The reversal of 40002994 is 49920004.

It can be written as a sum of positive squares in 4 ways, for example, as 31505769 + 8497225 = 5613^2 + 2915^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4392 + ... + 9964.

Almost surely, 2^40002994 is an apocalyptic number.

40002994 is a deficient number, since it is larger than the sum of its proper divisors (22269734).

40002994 is a wasteful number, since it uses less digits than its factorization.

40002994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5709.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 40002994 is about 6324.7920123906. The cubic root of 40002994 is about 342.0037219024.

Adding to 40002994 its reverse (49920004), we get a palindrome (89922998).

The spelling of 40002994 in words is "forty million, two thousand, nine hundred ninety-four".