11402440402 has 4 divisors (see below), whose sum is σ = 17103660606. Its totient is φ = 5701220200.

The previous prime is 11402440397. The next prime is 11402440403. The reversal of 11402440402 is 20404420411.

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., 10631878321 + 770562081 = 103111^2 + 27759^2 .

It is a Smith number, since the sum of its digits (22) 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 (11402440403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2850610099 + ... + 2850610102.

Almost surely, 2^11402440402 is an apocalyptic number.

11402440402 is a deficient number, since it is larger than the sum of its proper divisors (5701220204).

11402440402 is an equidigital number, since it uses as much as digits as its factorization.

11402440402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5701220203.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 11402440402 its reverse (20404420411), we get a palindrome (31806860813).

The spelling of 11402440402 in words is "eleven billion, four hundred two million, four hundred forty thousand, four hundred two".