40040000002 has 16 divisors (see below), whose sum is σ = 61066699200. Its totient is φ = 19685922480.

The previous prime is 40039999991. The next prime is 40040000009. The reversal of 40040000002 is 20000004004.

It is not an unprimeable number, because it can be changed into a prime (40040000009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 318177 + ... + 425812.

It is an arithmetic number, because the mean of its divisors is an integer number (3816668700).

Almost surely, 2^40040000002 is an apocalyptic number.

40040000002 is a deficient number, since it is larger than the sum of its proper divisors (21026699198).

40040000002 is a wasteful number, since it uses less digits than its factorization.

40040000002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 744441.

The product of its (nonzero) digits is 32, while the sum is 10.

Adding to 40040000002 its reverse (20000004004), we get a palindrome (60040004006).

The spelling of 40040000002 in words is "forty billion, forty million, two", and thus it is an aban number, an eban number, and an uban number.