403640040002 has 16 divisors (see below), whose sum is σ = 607912905600. Its totient is φ = 201003141072.

The previous prime is 403640039987. The next prime is 403640040019. The reversal of 403640040002 is 200040046304.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 403640040002.

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, 920183 + ... + 1286085.

It is an arithmetic number, because the mean of its divisors is an integer number (37994556600).

Almost surely, 2^403640040002 is an apocalyptic number.

403640040002 is a deficient number, since it is larger than the sum of its proper divisors (204272865598).

403640040002 is a wasteful number, since it uses less digits than its factorization.

403640040002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368137.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 403640040002 its reverse (200040046304), we get a palindrome (603680086306).

The spelling of 403640040002 in words is "four hundred three billion, six hundred forty million, forty thousand, two".