454721943 has 16 divisors (see below), whose sum is σ = 675450720. Its totient is φ = 270178944.

The previous prime is 454721941. The next prime is 454721957. The reversal of 454721943 is 349127454.

It is not a de Polignac number, because 454721943 - 2¹ = 454721941 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454721941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 199896 + ... + 202157.

It is an arithmetic number, because the mean of its divisors is an integer number (42215670).

Almost surely, 2^454721943 is an apocalyptic number.

454721943 is a deficient number, since it is larger than the sum of its proper divisors (220728777).

454721943 is a wasteful number, since it uses less digits than its factorization.

454721943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402098.

The product of its digits is 120960, while the sum is 39.

The square root of 454721943 is about 21324.2102550130. The cubic root of 454721943 is about 768.9804592677.

The spelling of 454721943 in words is "four hundred fifty-four million, seven hundred twenty-one thousand, nine hundred forty-three".