454929981 has 32 divisors (see below), whose sum is σ = 679506432. Its totient is φ = 268349760.

The previous prime is 454929971. The next prime is 454930001. The reversal of 454929981 is 189929454.

It is not a de Polignac number, because 454929981 - 2¹¹ = 454927933 is a prime.

It is a super-2 number, since 2×454929981² = 413922575225320722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454929971) 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, 741831 + ... + 742443.

It is an arithmetic number, because the mean of its divisors is an integer number (21234576).

Almost surely, 2^454929981 is an apocalyptic number.

It is an amenable number.

454929981 is a deficient number, since it is larger than the sum of its proper divisors (224576451).

454929981 is a wasteful number, since it uses less digits than its factorization.

454929981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193.

The product of its digits is 933120, while the sum is 51.

The square root of 454929981 is about 21329.0876738786. The cubic root of 454929981 is about 769.0977124365.

The spelling of 454929981 in words is "four hundred fifty-four million, nine hundred twenty-nine thousand, nine hundred eighty-one".