7245638 has 16 divisors (see below), whose sum is σ = 11625120. Its totient is φ = 3374976.

The previous prime is 7245619. The next prime is 7245671. The reversal of 7245638 is 8365427.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 7245598 and 7245607.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2468 + ... + 4536.

It is an arithmetic number, because the mean of its divisors is an integer number (726570).

Almost surely, 2^7245638 is an apocalyptic number.

7245638 is a deficient number, since it is larger than the sum of its proper divisors (4379482).

7245638 is a wasteful number, since it uses less digits than its factorization.

7245638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2191.

The product of its digits is 40320, while the sum is 35.

The square root of 7245638 is about 2691.7722786298. The cubic root of 7245638 is about 193.5050086951.

The spelling of 7245638 in words is "seven million, two hundred forty-five thousand, six hundred thirty-eight".