5121440 has 24 divisors (see below), whose sum is σ = 12099780. Its totient is φ = 2048512.

The previous prime is 5121439. The next prime is 5121463. The reversal of 5121440 is 441215.

It can be written as a sum of positive squares in 2 ways, for example, as 4145296 + 976144 = 2036^2 + 988^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15845 + ... + 16164.

Almost surely, 2^5121440 is an apocalyptic number.

It is an amenable number.

5121440 is an abundant number, since it is smaller than the sum of its proper divisors (6978340).

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

5121440 is a wasteful number, since it uses less digits than its factorization.

5121440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32024 (or 32016 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 5121440 is about 2263.0598754783. The cubic root of 5121440 is about 172.3709319481.

Adding to 5121440 its product of nonzero digits (160), we get a triangular number (5121600 = T₃₂₀₀).

Adding to 5121440 its reverse (441215), we get a palindrome (5562655).

The spelling of 5121440 in words is "five million, one hundred twenty-one thousand, four hundred forty".