5312440 has 32 divisors (see below), whose sum is σ = 13661280. Its totient is φ = 1821312.

The previous prime is 5312393. The next prime is 5312453. The reversal of 5312440 is 442135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9207 + ... + 9766.

It is an arithmetic number, because the mean of its divisors is an integer number (426915).

Almost surely, 2^5312440 is an apocalyptic number.

It is an amenable number.

5312440 is an abundant number, since it is smaller than the sum of its proper divisors (8348840).

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

5312440 is a wasteful number, since it uses less digits than its factorization.

5312440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18991 (or 18987 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 5312440 is about 2304.8730984590. The cubic root of 5312440 is about 174.4876442731.

Adding to 5312440 its reverse (442135), we get a palindrome (5754575).

It can be divided in two parts, 5 and 312440, that added together give a triangular number (312445 = T₇₉₀).

The spelling of 5312440 in words is "five million, three hundred twelve thousand, four hundred forty".