11440400042 has 16 divisors (see below), whose sum is σ = 18072084960. Its totient is φ = 5416648272.

The previous prime is 11440400029. The next prime is 11440400051. The reversal of 11440400042 is 24000404411.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11440399987 and 11440400023.

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, 16073 + ... + 152115.

It is an arithmetic number, because the mean of its divisors is an integer number (1129505310).

Almost surely, 2^11440400042 is an apocalyptic number.

11440400042 is a deficient number, since it is larger than the sum of its proper divisors (6631684918).

11440400042 is a wasteful number, since it uses less digits than its factorization.

11440400042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138277.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 11440400042 its reverse (24000404411), we get a palindrome (35440804453).

The spelling of 11440400042 in words is "eleven billion, four hundred forty million, four hundred thousand, forty-two".