8552440 has 32 divisors (see below), whose sum is σ = 20724480. Its totient is φ = 3157632.

The previous prime is 8552437. The next prime is 8552443. The reversal of 8552440 is 442558.

It is an interprime number because it is at equal distance from previous prime (8552437) and next prime (8552443).

It is a junction number, because it is equal to n+sod(n) for n = 8552399 and 8552408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8552443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7704 + ... + 8743.

It is an arithmetic number, because the mean of its divisors is an integer number (647640).

Almost surely, 2^8552440 is an apocalyptic number.

It is an amenable number.

8552440 is an abundant number, since it is smaller than the sum of its proper divisors (12172040).

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

8552440 is a wasteful number, since it uses less digits than its factorization.

8552440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16471 (or 16467 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 8552440 is about 2924.4555048761. The cubic root of 8552440 is about 204.5015851448.

Adding to 8552440 its reverse (442558), we get a palindrome (8994998).

It can be divided in two parts, 85 and 52440, that added together give a palindrome (52525).

The spelling of 8552440 in words is "eight million, five hundred fifty-two thousand, four hundred forty".