11345440 has 48 divisors (see below), whose sum is σ = 27978048. Its totient is φ = 4339456.

The previous prime is 11345429. The next prime is 11345447. The reversal of 11345440 is 4454311.

It is not an unprimeable number, because it can be changed into a prime (11345447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2139 + ... + 5221.

It is an arithmetic number, because the mean of its divisors is an integer number (582876).

Almost surely, 2^11345440 is an apocalyptic number.

11345440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11345440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13989024).

11345440 is an abundant number, since it is smaller than the sum of its proper divisors (16632608).

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

11345440 is a wasteful number, since it uses less digits than its factorization.

11345440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3121 (or 3113 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 11345440 is about 3368.2992741145. The cubic root of 11345440 is about 224.7020913282.

Adding to 11345440 its reverse (4454311), we get a palindrome (15799751).

The spelling of 11345440 in words is "eleven million, three hundred forty-five thousand, four hundred forty".