7243820 has 12 divisors (see below), whose sum is σ = 15212064. Its totient is φ = 2897520.

The previous prime is 7243787. The next prime is 7243837. The reversal of 7243820 is 283427.

It is a self number, because there is not a number n which added to its sum of digits gives 7243820.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181076 + ... + 181115.

It is an arithmetic number, because the mean of its divisors is an integer number (1267672).

Almost surely, 2^7243820 is an apocalyptic number.

It is an amenable number.

7243820 is an abundant number, since it is smaller than the sum of its proper divisors (7968244).

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

7243820 is a wasteful number, since it uses less digits than its factorization.

7243820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362200 (or 362198 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 7243820 is about 2691.4345617161. The cubic root of 7243820 is about 193.4888232543.

The spelling of 7243820 in words is "seven million, two hundred forty-three thousand, eight hundred twenty".