11400240 has 40 divisors (see below), whose sum is σ = 35341488. Its totient is φ = 3040000.

The previous prime is 11400239. The next prime is 11400283. The reversal of 11400240 is 4200411.

11400240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23511 + ... + 23990.

Almost surely, 2^11400240 is an apocalyptic number.

11400240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11400240 is an abundant number, since it is smaller than the sum of its proper divisors (23941248).

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

11400240 is a wasteful number, since it uses less digits than its factorization.

11400240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47517 (or 47511 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 11400240 is about 3376.4241439724. The cubic root of 11400240 is about 225.0632908371.

Adding to 11400240 its reverse (4200411), we get a palindrome (15600651).

The spelling of 11400240 in words is "eleven million, four hundred thousand, two hundred forty".