5420240 has 40 divisors (see below), whose sum is σ = 14403840. Its totient is φ = 1858176.

The previous prime is 5420231. The next prime is 5420267. The reversal of 5420240 is 420245.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4280 + ... + 5399.

It is an arithmetic number, because the mean of its divisors is an integer number (360096).

Almost surely, 2^5420240 is an apocalyptic number.

It is an amenable number.

5420240 is an abundant number, since it is smaller than the sum of its proper divisors (8983600).

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

5420240 is a wasteful number, since it uses less digits than its factorization.

5420240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9699 (or 9693 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 5420240 is about 2328.1408892075. The cubic root of 5420240 is about 175.6599840390.

Adding to 5420240 its reverse (420245), we get a palindrome (5840485).

The spelling of 5420240 in words is "five million, four hundred twenty thousand, two hundred forty".