7252420 has 24 divisors (see below), whose sum is σ = 17406144. Its totient is φ = 2486496.

The previous prime is 7252417. The next prime is 7252447. The reversal of 7252420 is 242527.

It is a junction number, because it is equal to n+sod(n) for n = 7252391 and 7252400.

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, 25762 + ... + 26041.

It is an arithmetic number, because the mean of its divisors is an integer number (725256).

Almost surely, 2^7252420 is an apocalyptic number.

7252420 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7252420 is an abundant number, since it is smaller than the sum of its proper divisors (10153724).

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

7252420 is a wasteful number, since it uses less digits than its factorization.

7252420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51819 (or 51817 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 7252420 is about 2693.0317487917. The cubic root of 7252420 is about 193.5653641679.

Adding to 7252420 its reverse (242527), we get a palindrome (7494947).

The spelling of 7252420 in words is "seven million, two hundred fifty-two thousand, four hundred twenty".