11240400234 has 32 divisors (see below), whose sum is σ = 25695492480. Its totient is φ = 3211149312.

The previous prime is 11240400181. The next prime is 11240400239. The reversal of 11240400234 is 43200404211.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 11240400234.

It is not an unprimeable number, because it can be changed into a prime (11240400239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631002 + ... + 648570.

It is an arithmetic number, because the mean of its divisors is an integer number (802984140).

Almost surely, 2^11240400234 is an apocalyptic number.

11240400234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11240400234 is an abundant number, since it is smaller than the sum of its proper divisors (14455092246).

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

11240400234 is a wasteful number, since it uses less digits than its factorization.

11240400234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32814.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 11240400234 its reverse (43200404211), we get a palindrome (54440804445).

The spelling of 11240400234 in words is "eleven billion, two hundred forty million, four hundred thousand, two hundred thirty-four".