8440454 has 8 divisors (see below), whose sum is σ = 13811688. Its totient is φ = 3836560.

The previous prime is 8440441. The next prime is 8440457. The reversal of 8440454 is 4540448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8440454² = 142482527452232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8440457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191807 + ... + 191850.

It is an arithmetic number, because the mean of its divisors is an integer number (1726461).

Almost surely, 2^8440454 is an apocalyptic number.

8440454 is a deficient number, since it is larger than the sum of its proper divisors (5371234).

8440454 is a wasteful number, since it uses less digits than its factorization.

8440454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383670.

The product of its (nonzero) digits is 10240, while the sum is 29.

The square root of 8440454 is about 2905.2459448384. The cubic root of 8440454 is about 203.6050766641.

The spelling of 8440454 in words is "eight million, four hundred forty thousand, four hundred fifty-four".