7268780 has 12 divisors (see below), whose sum is σ = 15264480. Its totient is φ = 2907504.

The previous prime is 7268777. The next prime is 7268783. The reversal of 7268780 is 878627.

It is an interprime number because it is at equal distance from previous prime (7268777) and next prime (7268783).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7268783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181700 + ... + 181739.

It is an arithmetic number, because the mean of its divisors is an integer number (1272040).

Almost surely, 2^7268780 is an apocalyptic number.

It is an amenable number.

7268780 is an abundant number, since it is smaller than the sum of its proper divisors (7995700).

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

7268780 is a wasteful number, since it uses less digits than its factorization.

7268780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363448 (or 363446 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 7268780 is about 2696.0675065732. The cubic root of 7268780 is about 193.7108030315.

The spelling of 7268780 in words is "seven million, two hundred sixty-eight thousand, seven hundred eighty".