11432240 has 20 divisors (see below), whose sum is σ = 26580144. Its totient is φ = 4572864.

The previous prime is 11432227. The next prime is 11432249. The reversal of 11432240 is 4223411.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×11432240² = 261392222835200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11432249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71372 + ... + 71531.

Almost surely, 2^11432240 is an apocalyptic number.

11432240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11432240 is an abundant number, since it is smaller than the sum of its proper divisors (15147904).

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

11432240 is a wasteful number, since it uses less digits than its factorization.

11432240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142916 (or 142910 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 11432240 is about 3381.1595644098. The cubic root of 11432240 is about 225.2736752149.

Adding to 11432240 its reverse (4223411), we get a palindrome (15655651).

The spelling of 11432240 in words is "eleven million, four hundred thirty-two thousand, two hundred forty".