11402144442 has 64 divisors (see below), whose sum is σ = 28024738560. Its totient is φ = 3413524032.

The previous prime is 11402144423. The next prime is 11402144471. The reversal of 11402144442 is 24444120411.

It is a happy number.

11402144442 is a `hidden beast` number, since 1 + 1 + 4 + 0 + 214 + 4 + 442 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 193518 + ... + 245465.

It is an arithmetic number, because the mean of its divisors is an integer number (437886540).

Almost surely, 2^11402144442 is an apocalyptic number.

11402144442 is an abundant number, since it is smaller than the sum of its proper divisors (16622594118).

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

11402144442 is a wasteful number, since it uses less digits than its factorization.

11402144442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439044 (or 439038 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 11402144442 its reverse (24444120411), we get a palindrome (35846264853).

The spelling of 11402144442 in words is "eleven billion, four hundred two million, one hundred forty-four thousand, four hundred forty-two".