8425240 has 16 divisors (see below), whose sum is σ = 18956880. Its totient is φ = 3370080.

The previous prime is 8425237. The next prime is 8425243. The reversal of 8425240 is 425248.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8425237) and next prime (8425243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8425243) 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, 105276 + ... + 105355.

It is an arithmetic number, because the mean of its divisors is an integer number (1184805).

Almost surely, 2^8425240 is an apocalyptic number.

It is an amenable number.

8425240 is an abundant number, since it is smaller than the sum of its proper divisors (10531640).

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

8425240 is a wasteful number, since it uses less digits than its factorization.

8425240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210642 (or 210638 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 8425240 is about 2902.6263969033. The cubic root of 8425240 is about 203.4826697145.

The spelling of 8425240 in words is "eight million, four hundred twenty-five thousand, two hundred forty".