5242440 has 96 divisors (see below), whose sum is σ = 18204480. Its totient is φ = 1183104.

The previous prime is 5242439. The next prime is 5242451. The reversal of 5242440 is 442425.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66321 + ... + 66399.

It is an arithmetic number, because the mean of its divisors is an integer number (189630).

Almost surely, 2^5242440 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 5242440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9102240).

5242440 is an abundant number, since it is smaller than the sum of its proper divisors (12962040).

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

5242440 is a wasteful number, since it uses less digits than its factorization.

5242440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 5242440 is about 2289.6375258979. The cubic root of 5242440 is about 173.7178675290.

Adding to 5242440 its reverse (442425), we get a palindrome (5684865).

The spelling of 5242440 in words is "five million, two hundred forty-two thousand, four hundred forty".