11400453432 has 128 divisors (see below), whose sum is σ = 32462918400. Its totient is φ = 3705077376.

The previous prime is 11400453409. The next prime is 11400453439. The reversal of 11400453432 is 23435400411.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 11400453396 and 11400453405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11400453439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10151223 + ... + 10152345.

It is an arithmetic number, because the mean of its divisors is an integer number (253616550).

Almost surely, 2^11400453432 is an apocalyptic number.

11400453432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11400453432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16231459200).

11400453432 is an abundant number, since it is smaller than the sum of its proper divisors (21062464968).

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

11400453432 is a wasteful number, since it uses less digits than its factorization.

11400453432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2274 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 11400453432 its reverse (23435400411), we get a palindrome (34835853843).

The spelling of 11400453432 in words is "eleven billion, four hundred million, four hundred fifty-three thousand, four hundred thirty-two".