11434443400 has 24 divisors (see below), whose sum is σ = 26585081370. Its totient is φ = 4573777280.

The previous prime is 11434443347. The next prime is 11434443401. The reversal of 11434443400 is 434443411.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5062891716 + 6371551684 = 71154^2 + 79822^2 .

It is not an unprimeable number, because it can be changed into a prime (11434443401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28585909 + ... + 28586308.

Almost surely, 2^11434443400 is an apocalyptic number.

11434443400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11434443400 is an abundant number, since it is smaller than the sum of its proper divisors (15150637970).

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

11434443400 is a wasteful number, since it uses less digits than its factorization.

11434443400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57172233 (or 57172224 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 11434443400 its reverse (434443411), we get a palindrome (11868886811).

The spelling of 11434443400 in words is "eleven billion, four hundred thirty-four million, four hundred forty-three thousand, four hundred".