7208740 has 96 divisors (see below), whose sum is σ = 19611648. Its totient is φ = 2160000.

The previous prime is 7208723. The next prime is 7208753. The reversal of 7208740 is 478027.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a zygodrome in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 7208699 and 7208708.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47665 + ... + 47815.

It is an arithmetic number, because the mean of its divisors is an integer number (204288).

Almost surely, 2^7208740 is an apocalyptic number.

7208740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7208740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9805824).

7208740 is an abundant number, since it is smaller than the sum of its proper divisors (12402908).

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

7208740 is a wasteful number, since it uses less digits than its factorization.

7208740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 7208740 is about 2684.9096819074. The cubic root of 7208740 is about 193.1759784499.

It can be divided in two parts, 72087 and 40, that added together give a palindrome (72127).

The spelling of 7208740 in words is "seven million, two hundred eight thousand, seven hundred forty".