8435240 has 64 divisors (see below), whose sum is σ = 21816000. Its totient is φ = 2903040.

The previous prime is 8435237. The next prime is 8435243. The reversal of 8435240 is 425348.

It is an interprime number because it is at equal distance from previous prime (8435237) and next prime (8435243).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (8435243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7856 + ... + 8864.

It is an arithmetic number, because the mean of its divisors is an integer number (340875).

Almost surely, 2^8435240 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 8435240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10908000).

8435240 is an abundant number, since it is smaller than the sum of its proper divisors (13380760).

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

8435240 is a wasteful number, since it uses less digits than its factorization.

8435240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 1046 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 8435240 is about 2904.3484639416. The cubic root of 8435240 is about 203.5631430769.

The spelling of 8435240 in words is "eight million, four hundred thirty-five thousand, two hundred forty".