455450381 has 4 divisors (see below), whose sum is σ = 455553564. Its totient is φ = 455347200.

The previous prime is 455450377. The next prime is 455450467. The reversal of 455450381 is 183054554.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 167469481 + 287980900 = 12941^2 + 16970^2 .

It is a cyclic number.

It is not a de Polignac number, because 455450381 - 2² = 455450377 is a prime.

It is a super-2 number, since 2×455450381² = 414870099106090322, 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 (455450341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44660 + ... + 53901.

It is an arithmetic number, because the mean of its divisors is an integer number (113888391).

Almost surely, 2^455450381 is an apocalyptic number.

It is an amenable number.

455450381 is a deficient number, since it is larger than the sum of its proper divisors (103183).

455450381 is an equidigital number, since it uses as much as digits as its factorization.

455450381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103182.

The product of its (nonzero) digits is 48000, while the sum is 35.

The square root of 455450381 is about 21341.2834899872. The cubic root of 455450381 is about 769.3908607968.

The spelling of 455450381 in words is "four hundred fifty-five million, four hundred fifty thousand, three hundred eighty-one".