8440554 has 16 divisors (see below), whose sum is σ = 16929792. Its totient is φ = 2805408.

The previous prime is 8440529. The next prime is 8440559. The reversal of 8440554 is 4550448.

It is not an unprimeable number, because it can be changed into a prime (8440559) 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, 462 + ... + 4134.

It is an arithmetic number, because the mean of its divisors is an integer number (1058112).

Almost surely, 2^8440554 is an apocalyptic number.

8440554 is an abundant number, since it is smaller than the sum of its proper divisors (8489238).

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

8440554 is a wasteful number, since it uses less digits than its factorization.

8440554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4061.

The product of its (nonzero) digits is 12800, while the sum is 30.

The square root of 8440554 is about 2905.2631550343. The cubic root of 8440554 is about 203.6058807451.

The spelling of 8440554 in words is "eight million, four hundred forty thousand, five hundred fifty-four".