11440423430 has 16 divisors (see below), whose sum is σ = 20610643104. Its totient is φ = 4572195840.

The previous prime is 11440423429. The next prime is 11440423447. The reversal of 11440423430 is 3432404411.

It is a self number, because there is not a number n which added to its sum of digits gives 11440423430.

It is a congruent number.

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, 484586 + ... + 507645.

It is an arithmetic number, because the mean of its divisors is an integer number (1288165194).

Almost surely, 2^11440423430 is an apocalyptic number.

11440423430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11440423430 is a deficient number, since it is larger than the sum of its proper divisors (9170219674).

11440423430 is a wasteful number, since it uses less digits than its factorization.

11440423430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993391.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 11440423430 its reverse (3432404411), we get a palindrome (14872827841).

The spelling of 11440423430 in words is "eleven billion, four hundred forty million, four hundred twenty-three thousand, four hundred thirty".