8249740 has 12 divisors (see below), whose sum is σ = 17324496. Its totient is φ = 3299888.

The previous prime is 8249723. The next prime is 8249783. The reversal of 8249740 is 479428.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 8249696 and 8249705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206224 + ... + 206263.

It is an arithmetic number, because the mean of its divisors is an integer number (1443708).

Almost surely, 2^8249740 is an apocalyptic number.

It is an amenable number.

8249740 is an abundant number, since it is smaller than the sum of its proper divisors (9074756).

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

8249740 is a wasteful number, since it uses less digits than its factorization.

8249740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412496 (or 412494 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 8249740 is about 2872.2360627219. The cubic root of 8249740 is about 202.0598783373.

The spelling of 8249740 in words is "eight million, two hundred forty-nine thousand, seven hundred forty".