11240323640 has 192 divisors, whose sum is σ = 32224197600. Its totient is φ = 3496614912.

The previous prime is 11240323597. The next prime is 11240323651. The reversal of 11240323640 is 4632304211.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1499582 + ... + 1507058.

Almost surely, 2^11240323640 is an apocalyptic number.

11240323640 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 11240323640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16112098800).

11240323640 is an abundant number, since it is smaller than the sum of its proper divisors (20983873960).

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

11240323640 is a wasteful number, since it uses less digits than its factorization.

11240323640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7574 (or 7563 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 11240323640 its reverse (4632304211), we get a palindrome (15872627851).

The spelling of 11240323640 in words is "eleven billion, two hundred forty million, three hundred twenty-three thousand, six hundred forty".