7243740 has 72 divisors (see below), whose sum is σ = 25116000. Its totient is φ = 1655424.

The previous prime is 7243721. The next prime is 7243741. The reversal of 7243740 is 473427.

It is a zygodrome in base 3.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7243741) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1615 + ... + 4134.

Almost surely, 2^7243740 is an apocalyptic number.

7243740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

7243740 is an abundant number, since it is smaller than the sum of its proper divisors (17872260).

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

7243740 is a wasteful number, since it uses less digits than its factorization.

7243740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5771 (or 5766 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 7243740 is about 2691.4196997124. The cubic root of 7243740 is about 193.4881109615.

The spelling of 7243740 in words is "seven million, two hundred forty-three thousand, seven hundred forty".