7425216 has 56 divisors (see below), whose sum is σ = 21833840. Its totient is φ = 2474496.

The previous prime is 7425203. The next prime is 7425227. The reversal of 7425216 is 6125247.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7425216.

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, 421 + ... + 3876.

It is an arithmetic number, because the mean of its divisors is an integer number (389890).

Almost surely, 2^7425216 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 7425216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10916920).

7425216 is an abundant number, since it is smaller than the sum of its proper divisors (14408624).

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

7425216 is a wasteful number, since it uses less digits than its factorization.

7425216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4318 (or 4302 counting only the distinct ones).

The product of its digits is 3360, while the sum is 27.

The square root of 7425216 is about 2724.9249530950. The cubic root of 7425216 is about 195.0906087787.

The spelling of 7425216 in words is "seven million, four hundred twenty-five thousand, two hundred sixteen".