8451040 has 96 divisors (see below), whose sum is σ = 22861440. Its totient is φ = 2924544.

The previous prime is 8451019. The next prime is 8451041. The reversal of 8451040 is 401548.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8451041) 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, 35241 + ... + 35479.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

Almost surely, 2^8451040 is an apocalyptic number.

8451040 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 8451040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11430720).

8451040 is an abundant number, since it is smaller than the sum of its proper divisors (14410400).

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

8451040 is a wasteful number, since it uses less digits than its factorization.

8451040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284 (or 276 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 8451040 is about 2907.0672506841. The cubic root of 8451040 is about 203.6901614587.

Adding to 8451040 its reverse (401548), we get a palindrome (8852588).

The spelling of 8451040 in words is "eight million, four hundred fifty-one thousand, forty".