8261740 has 12 divisors (see below), whose sum is σ = 17349696. Its totient is φ = 3304688.

The previous prime is 8261689. The next prime is 8261749. The reversal of 8261740 is 471628.

It is a junction number, because it is equal to n+sod(n) for n = 8261699 and 8261708.

It is not an unprimeable number, because it can be changed into a prime (8261749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206524 + ... + 206563.

It is an arithmetic number, because the mean of its divisors is an integer number (1445808).

Almost surely, 2^8261740 is an apocalyptic number.

It is an amenable number.

8261740 is an abundant number, since it is smaller than the sum of its proper divisors (9087956).

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

8261740 is a wasteful number, since it uses less digits than its factorization.

8261740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413096 (or 413094 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 8261740 is about 2874.3242684151. The cubic root of 8261740 is about 202.1578023862.

The spelling of 8261740 in words is "eight million, two hundred sixty-one thousand, seven hundred forty".