11442434440 has 16 divisors (see below), whose sum is σ = 25745477580. Its totient is φ = 4576973760.

The previous prime is 11442434413. The next prime is 11442434449. The reversal of 11442434440 is 4443424411.

It can be written as a sum of positive squares in 2 ways, for example, as 11150092836 + 292341604 = 105594^2 + 17098^2 .

It is a super-2 number, since 2×11442434440² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11442434449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143030391 + ... + 143030470.

Almost surely, 2^11442434440 is an apocalyptic number.

11442434440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11442434440 is an abundant number, since it is smaller than the sum of its proper divisors (14303043140).

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

11442434440 is a wasteful number, since it uses less digits than its factorization.

11442434440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286060872 (or 286060868 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 11442434440 its reverse (4443424411), we get a palindrome (15885858851).

The spelling of 11442434440 in words is "eleven billion, four hundred forty-two million, four hundred thirty-four thousand, four hundred forty".