40052002 has 4 divisors (see below), whose sum is σ = 60078006. Its totient is φ = 20026000.

The previous prime is 40051967. The next prime is 40052009. The reversal of 40052002 is 20025004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39050001 + 1002001 = 6249^2 + 1001^2 .

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (40052009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10012999 + ... + 10013002.

Almost surely, 2^40052002 is an apocalyptic number.

40052002 is a deficient number, since it is larger than the sum of its proper divisors (20026004).

40052002 is a wasteful number, since it uses less digits than its factorization.

40052002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20026003.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 40052002 is about 6328.6651041116. The cubic root of 40052002 is about 342.1433287729.

Adding to 40052002 its reverse (20025004), we get a palindrome (60077006).

It can be divided in two parts, 4005 and 2002, that multiplied together give a triangular number (8018010 = T₄₀₀₄).

The spelling of 40052002 in words is "forty million, fifty-two thousand, two", and thus it is an eban number.