8489040 has 160 divisors (see below), whose sum is σ = 31236096. Its totient is φ = 1866240.

The previous prime is 8489027. The next prime is 8489053. The reversal of 8489040 is 409848.

It is an interprime number because it is at equal distance from previous prime (8489027) and next prime (8489053).

It is a junction number, because it is equal to n+sod(n) for n = 8488992 and 8489010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51999 + ... + 52161.

Almost surely, 2^8489040 is an apocalyptic number.

8489040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8489040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15618048).

8489040 is an abundant number, since it is smaller than the sum of its proper divisors (22747056).

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

8489040 is a wasteful number, since it uses less digits than its factorization.

8489040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 211 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 8489040 is about 2913.5957166361. The cubic root of 8489040 is about 203.9950017999.

The spelling of 8489040 in words is "eight million, four hundred eighty-nine thousand, forty".