8242500 has 120 divisors (see below), whose sum is σ = 27641152. Its totient is φ = 1872000.

The previous prime is 8242469. The next prime is 8242519. The reversal of 8242500 is 52428.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 52422 + ... + 52578.

Almost surely, 2^8242500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8242500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13820576).

8242500 is an abundant number, since it is smaller than the sum of its proper divisors (19398652).

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

8242500 is a wasteful number, since it uses less digits than its factorization.

8242500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 8242500 is about 2870.9754439911. The cubic root of 8242500 is about 202.0007515575. Note that the first 3 decimals are identical.

Adding to 8242500 its reverse (52428), we get a palindrome (8294928).

The spelling of 8242500 in words is "eight million, two hundred forty-two thousand, five hundred".