455744421 has 32 divisors (see below), whose sum is σ = 743898240. Its totient is φ = 273456000.

The previous prime is 455744417. The next prime is 455744437. The reversal of 455744421 is 124447554.

455744421 is a `hidden beast` number, since 45 + 574 + 4 + 42 + 1 = 666.

It is not a de Polignac number, because 455744421 - 2² = 455744417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455744411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22401 + ... + 37593.

It is an arithmetic number, because the mean of its divisors is an integer number (23246820).

Almost surely, 2^455744421 is an apocalyptic number.

It is an amenable number.

455744421 is a deficient number, since it is larger than the sum of its proper divisors (288153819).

455744421 is a wasteful number, since it uses less digits than its factorization.

455744421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15314 (or 15308 counting only the distinct ones).

The product of its digits is 89600, while the sum is 36.

The square root of 455744421 is about 21348.1713736798. The cubic root of 455744421 is about 769.5563987861.

The spelling of 455744421 in words is "four hundred fifty-five million, seven hundred forty-four thousand, four hundred twenty-one".