11240437720 has 32 divisors (see below), whose sum is σ = 25325554320. Its totient is φ = 4490029440.

The previous prime is 11240437711. The next prime is 11240437739. The reversal of 11240437720 is 2773404211.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162366 + ... + 221005.

Almost surely, 2^11240437720 is an apocalyptic number.

11240437720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11240437720 is an abundant number, since it is smaller than the sum of its proper divisors (14085116600).

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

11240437720 is a wasteful number, since it uses less digits than its factorization.

11240437720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384115 (or 384111 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The spelling of 11240437720 in words is "eleven billion, two hundred forty million, four hundred thirty-seven thousand, seven hundred twenty".