8536440 has 128 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 1989120.

The previous prime is 8536417. The next prime is 8536441. The reversal of 8536440 is 446358.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 8536398 and 8536407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8536441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38169 + ... + 38391.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 2^8536440 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 8536440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14515200).

8536440 is an abundant number, since it is smaller than the sum of its proper divisors (20493960).

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

8536440 is a wasteful number, since it uses less digits than its factorization.

8536440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277 (or 273 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 8536440 is about 2921.7186722886. The cubic root of 8536440 is about 204.3739775875.

The spelling of 8536440 in words is "eight million, five hundred thirty-six thousand, four hundred forty".