11307440 has 40 divisors (see below), whose sum is σ = 26435808. Its totient is φ = 4497920.

The previous prime is 11307407. The next prime is 11307463. The reversal of 11307440 is 4470311.

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 (20).

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, 22229 + ... + 22731.

Almost surely, 2^11307440 is an apocalyptic number.

11307440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11307440 is an abundant number, since it is smaller than the sum of its proper divisors (15128368).

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

11307440 is a wasteful number, since it uses less digits than its factorization.

11307440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797 (or 791 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 11307440 is about 3362.6537139587. The cubic root of 11307440 is about 224.4509410777.

Adding to 11307440 its reverse (4470311), we get a palindrome (15777751).

The spelling of 11307440 in words is "eleven million, three hundred seven thousand, four hundred forty".