454549816 has 16 divisors (see below), whose sum is σ = 974035440. Its totient is φ = 194807040.

The previous prime is 454549813. The next prime is 454549817. The reversal of 454549816 is 618945454.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454549811) 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, 4058425 + ... + 4058536.

It is an arithmetic number, because the mean of its divisors is an integer number (60877215).

Almost surely, 2^454549816 is an apocalyptic number.

It is an amenable number.

454549816 is an abundant number, since it is smaller than the sum of its proper divisors (519485624).

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

454549816 is a wasteful number, since it uses less digits than its factorization.

454549816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116974 (or 8116970 counting only the distinct ones).

The product of its digits is 691200, while the sum is 46.

The square root of 454549816 is about 21320.1739204914. The cubic root of 454549816 is about 768.8834190096.

The spelling of 454549816 in words is "four hundred fifty-four million, five hundred forty-nine thousand, eight hundred sixteen".