11403244240 has 40 divisors (see below), whose sum is σ = 26591277960. Its totient is φ = 4547751936.

The previous prime is 11403244211. The next prime is 11403244247. The reversal of 11403244240 is 4244230411.

It can be written as a sum of positive squares in 4 ways, for example, as 253573776 + 11149670464 = 15924^2 + 105592^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403244247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184525 + ... + 238444.

It is an arithmetic number, because the mean of its divisors is an integer number (664781949).

Almost surely, 2^11403244240 is an apocalyptic number.

11403244240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11403244240 is an abundant number, since it is smaller than the sum of its proper divisors (15188033720).

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

11403244240 is a wasteful number, since it uses less digits than its factorization.

11403244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423319 (or 423313 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 11403244240 its reverse (4244230411), we get a palindrome (15647474651).

The spelling of 11403244240 in words is "eleven billion, four hundred three million, two hundred forty-four thousand, two hundred forty".