11440142 has 8 divisors (see below), whose sum is σ = 19611696. Its totient is φ = 4902912.

The previous prime is 11440127. The next prime is 11440151. The reversal of 11440142 is 24104411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11440142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 408563 + ... + 408590.

It is an arithmetic number, because the mean of its divisors is an integer number (2451462).

Almost surely, 2^11440142 is an apocalyptic number.

11440142 is a deficient number, since it is larger than the sum of its proper divisors (8171554).

11440142 is an equidigital number, since it uses as much as digits as its factorization.

11440142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 817162.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 11440142 is about 3382.3278965825. The cubic root of 11440142 is about 225.3255665503.

Adding to 11440142 its reverse (24104411), we get a palindrome (35544553).

The spelling of 11440142 in words is "eleven million, four hundred forty thousand, one hundred forty-two".