5113440 has 144 divisors (see below), whose sum is σ = 18044208. Its totient is φ = 1317888.

The previous prime is 5113417. The next prime is 5113441. The reversal of 5113440 is 443115.

It is a happy number.

5113440 is nontrivially palindromic in base 11.

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×5113440² = 52294537267200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5113441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 76287 + ... + 76353.

It is an arithmetic number, because the mean of its divisors is an integer number (125307).

Almost surely, 2^5113440 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5113440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9022104).

5113440 is an abundant number, since it is smaller than the sum of its proper divisors (12930768).

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

5113440 is a wasteful number, since it uses less digits than its factorization.

5113440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 130 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 5113440 is about 2261.2916662828. The cubic root of 5113440 is about 172.2811338907.

Adding to 5113440 its reverse (443115), we get a palindrome (5556555).

The spelling of 5113440 in words is "five million, one hundred thirteen thousand, four hundred forty".