454821019 has 8 divisors (see below), whose sum is σ = 468260672. Its totient is φ = 441511560.

The previous prime is 454821013. The next prime is 454821023. The reversal of 454821019 is 910128454.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 454821019 - 2³ = 454821011 is a prime.

It is a super-2 number, since 2×454821019² = 413724318648396722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (454821011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25437 + ... + 39454.

It is an arithmetic number, because the mean of its divisors is an integer number (58532584).

Almost surely, 2^454821019 is an apocalyptic number.

454821019 is a deficient number, since it is larger than the sum of its proper divisors (13439653).

454821019 is a wasteful number, since it uses less digits than its factorization.

454821019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65097.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 454821019 is about 21326.5332156917. The cubic root of 454821019 is about 769.0363043664.

The spelling of 454821019 in words is "four hundred fifty-four million, eight hundred twenty-one thousand, nineteen".