7243506 has 40 divisors (see below), whose sum is σ = 16519404. Its totient is φ = 2371680.

The previous prime is 7243487. The next prime is 7243517. The reversal of 7243506 is 6053427.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7241481 + 2025 = 2691^2 + 45^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 7243506.

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 19 ways as a sum of consecutive naturals, for example, 9516 + ... + 10248.

Almost surely, 2^7243506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7243506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8259702).

7243506 is an abundant number, since it is smaller than the sum of its proper divisors (9275898).

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

7243506 is a wasteful number, since it uses less digits than its factorization.

7243506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808 (or 799 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 7243506 is about 2691.3762278805. The cubic root of 7243506 is about 193.4860274749.

7243506 divided by its sum of digits (27) gives a triangular number (268278 = T₇₃₂).

The spelling of 7243506 in words is "seven million, two hundred forty-three thousand, five hundred six".