7275018 has 16 divisors (see below), whose sum is σ = 15019776. Its totient is φ = 2346720.

The previous prime is 7275017. The next prime is 7275019. The reversal of 7275018 is 8105727.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7275017) and next prime (7275019).

It is not an unprimeable number, because it can be changed into a prime (7275011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19371 + ... + 19742.

It is an arithmetic number, because the mean of its divisors is an integer number (938736).

Almost surely, 2^7275018 is an apocalyptic number.

7275018 is an abundant number, since it is smaller than the sum of its proper divisors (7744758).

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

7275018 is a wasteful number, since it uses less digits than its factorization.

7275018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39149.

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 7275018 is about 2697.2241286182. The cubic root of 7275018 is about 193.7662007958.

The spelling of 7275018 in words is "seven million, two hundred seventy-five thousand, eighteen".