453958981 has 12 divisors (see below), whose sum is σ = 551035872. Its totient is φ = 372189048.

The previous prime is 453958961. The next prime is 453958993. The reversal of 453958981 is 189859354.

It is not a de Polignac number, because 453958981 - 2²⁵ = 420404549 is a prime.

It is a super-2 number, since 2×453958981² = 412157512861116722, 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 (453958961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200275 + ... + 202528.

It is an arithmetic number, because the mean of its divisors is an integer number (45919656).

Almost surely, 2^453958981 is an apocalyptic number.

It is an amenable number.

453958981 is a deficient number, since it is larger than the sum of its proper divisors (97076891).

453958981 is a wasteful number, since it uses less digits than its factorization.

453958981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402840 (or 402833 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 52.

The square root of 453958981 is about 21306.3131723909. The cubic root of 453958981 is about 768.5501367227.

The spelling of 453958981 in words is "four hundred fifty-three million, nine hundred fifty-eight thousand, nine hundred eighty-one".