11304012440 has 64 divisors (see below), whose sum is σ = 29077012800. Its totient is φ = 3874387968.

The previous prime is 11304012439. The next prime is 11304012463. The reversal of 11304012440 is 4421040311.

It is a super-3 number, since 3×11304012440³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1319852 + ... + 1328388.

It is an arithmetic number, because the mean of its divisors is an integer number (454328325).

Almost surely, 2^11304012440 is an apocalyptic number.

11304012440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11304012440 is an abundant number, since it is smaller than the sum of its proper divisors (17773000360).

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

11304012440 is a wasteful number, since it uses less digits than its factorization.

11304012440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284 (or 13280 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11304012440 its reverse (4421040311), we get a palindrome (15725052751).

The spelling of 11304012440 in words is "eleven billion, three hundred four million, twelve thousand, four hundred forty".