454023021 has 8 divisors (see below), whose sum is σ = 614399584. Its totient is φ = 298164240.

The previous prime is 454023007. The next prime is 454023023. The reversal of 454023021 is 120320454.

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

It is not a de Polignac number, because 454023021 - 2¹³ = 454014829 is a prime.

It is a super-2 number, since 2×454023021² = 412273807195932882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454023023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1129210 + ... + 1129611.

It is an arithmetic number, because the mean of its divisors is an integer number (76799948).

Almost surely, 2^454023021 is an apocalyptic number.

It is an amenable number.

454023021 is a deficient number, since it is larger than the sum of its proper divisors (160376563).

454023021 is a wasteful number, since it uses less digits than its factorization.

454023021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2258891.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 454023021 is about 21307.8159603466. The cubic root of 454023021 is about 768.5862748164.

Adding to 454023021 its reverse (120320454), we get a palindrome (574343475).

The spelling of 454023021 in words is "four hundred fifty-four million, twenty-three thousand, twenty-one".