5221240 has 16 divisors (see below), whose sum is σ = 11747880. Its totient is φ = 2088480.

The previous prime is 5221231. The next prime is 5221283. The reversal of 5221240 is 421225.

It is a super-2 number, since 2×5221240² = 54522694275200, which contains 22 as substring.

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, 65226 + ... + 65305.

Almost surely, 2^5221240 is an apocalyptic number.

It is an amenable number.

5221240 is an abundant number, since it is smaller than the sum of its proper divisors (6526640).

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

5221240 is a wasteful number, since it uses less digits than its factorization.

5221240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130542 (or 130538 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 5221240 is about 2285.0032822734. The cubic root of 5221240 is about 173.4833842022.

Adding to 5221240 its reverse (421225), we get a palindrome (5642465).

The spelling of 5221240 in words is "five million, two hundred twenty-one thousand, two hundred forty".