11240437 has 8 divisors (see below), whose sum is σ = 12400920. Its totient is φ = 10122240.

The previous prime is 11240423. The next prime is 11240483. The reversal of 11240437 is 73404211.

It can be written as a sum of positive squares in 4 ways, for example, as 703921 + 10536516 = 839^2 + 3246^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11240437 - 2⁷ = 11240309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11240137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10012 + ... + 11077.

It is an arithmetic number, because the mean of its divisors is an integer number (1550115).

Almost surely, 2^11240437 is an apocalyptic number.

It is an amenable number.

11240437 is a deficient number, since it is larger than the sum of its proper divisors (1160483).

11240437 is a wasteful number, since it uses less digits than its factorization.

11240437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21143.

The product of its (nonzero) digits is 672, while the sum is 22.

The square root of 11240437 is about 3352.6760953006. The cubic root of 11240437 is about 224.0067294428.

Adding to 11240437 its reverse (73404211), we get a palindrome (84644648).

The spelling of 11240437 in words is "eleven million, two hundred forty thousand, four hundred thirty-seven".