5115440 has 40 divisors (see below), whose sum is σ = 12976848. Its totient is φ = 1859840.

The previous prime is 5115431. The next prime is 5115449. The reversal of 5115440 is 445115.

It is an interprime number because it is at equal distance from previous prime (5115431) and next prime (5115449).

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 not an unprimeable number, because it can be changed into a prime (5115449) 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, 2027 + ... + 3786.

Almost surely, 2^5115440 is an apocalyptic number.

It is an amenable number.

5115440 is an abundant number, since it is smaller than the sum of its proper divisors (7861408).

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

5115440 is a wasteful number, since it uses less digits than its factorization.

5115440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5837 (or 5831 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 5115440 is about 2261.7338481793. The cubic root of 5115440 is about 172.3035921807.

It can be divided in two parts, 5115 and 440, that added together give a palindrome (5555).

The spelling of 5115440 in words is "five million, one hundred fifteen thousand, four hundred forty".