454541820 has 48 divisors (see below), whose sum is σ = 1302322560. Its totient is φ = 118391616.

The previous prime is 454541819. The next prime is 454541821. The reversal of 454541820 is 28145454.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (454541819) and next prime (454541821).

It is a super-2 number, since 2×454541820² = 413216532257824800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454541821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85510 + ... + 90669.

It is an arithmetic number, because the mean of its divisors is an integer number (27131720).

Almost surely, 2^454541820 is an apocalyptic number.

It is an amenable number.

454541820 is an abundant number, since it is smaller than the sum of its proper divisors (847780740).

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

454541820 is a wasteful number, since it uses less digits than its factorization.

454541820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176234 (or 176232 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 33.

The square root of 454541820 is about 21319.9863977443. The cubic root of 454541820 is about 768.8789104991.

It can be divided in two parts, 45454 and 1820, that added together give a palindrome (47274).

The spelling of 454541820 in words is "four hundred fifty-four million, five hundred forty-one thousand, eight hundred twenty".