454021144 has 16 divisors (see below), whose sum is σ = 863280720. Its totient is φ = 223812960.

The previous prime is 454021123. The next prime is 454021153. The reversal of 454021144 is 441120454.

It is a super-2 number, since 2×454021144² = 412270398398137472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 399099 + ... + 400234.

It is an arithmetic number, because the mean of its divisors is an integer number (53955045).

Almost surely, 2^454021144 is an apocalyptic number.

It is an amenable number.

454021144 is a deficient number, since it is larger than the sum of its proper divisors (409259576).

454021144 is a wasteful number, since it uses less digits than its factorization.

454021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799410 (or 799406 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 454021144 is about 21307.7719154303. The cubic root of 454021144 is about 768.5852156642.

Adding to 454021144 its reverse (441120454), we get a palindrome (895141598).

The spelling of 454021144 in words is "four hundred fifty-four million, twenty-one thousand, one hundred forty-four".