11430353440 has 96 divisors (see below), whose sum is σ = 29495612160. Its totient is φ = 4151347200.

The previous prime is 11430353399. The next prime is 11430353483. The reversal of 11430353440 is 4435303411.

It is a junction number, because it is equal to n+sod(n) for n = 11430353399 and 11430353408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1599796 + ... + 1606924.

It is an arithmetic number, because the mean of its divisors is an integer number (307245960).

Almost surely, 2^11430353440 is an apocalyptic number.

11430353440 is a gapful number since it is divisible by the number (10) 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 11430353440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14747806080).

11430353440 is an abundant number, since it is smaller than the sum of its proper divisors (18065258720).

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

11430353440 is a wasteful number, since it uses less digits than its factorization.

11430353440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8066 (or 8058 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 11430353440 its reverse (4435303411), we get a palindrome (15865656851).

The spelling of 11430353440 in words is "eleven billion, four hundred thirty million, three hundred fifty-three thousand, four hundred forty".