39940002 has 24 divisors (see below), whose sum is σ = 86843484. Its totient is φ = 13266144.

The previous prime is 39939971. The next prime is 39940009. The reversal of 39940002 is 20004993.

39940002 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 25492401 + 14447601 = 5049^2 + 3801^2 .

It is not an unprimeable number, because it can be changed into a prime (39940009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1488 + ... + 9060.

Almost surely, 2^39940002 is an apocalyptic number.

39940002 is an abundant number, since it is smaller than the sum of its proper divisors (46903482).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39940002 is a wasteful number, since it uses less digits than its factorization.

39940002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7874 (or 7871 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 39940002 is about 6319.8102819626. The cubic root of 39940002 is about 341.8241118762.

Adding to 39940002 its reverse (20004993), we get a palindrome (59944995).

It can be divided in two parts, 399 and 40002, that added together give a square (40401 = 201²).

The spelling of 39940002 in words is "thirty-nine million, nine hundred forty thousand, two".