450265381 has 4 divisors (see below), whose sum is σ = 451939500. Its totient is φ = 448591264.

The previous prime is 450265379. The next prime is 450265391. The reversal of 450265381 is 183562054.

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 145588356 + 304677025 = 12066^2 + 17455^2 .

It is a cyclic number.

It is not a de Polignac number, because 450265381 - 2¹ = 450265379 is a prime.

It is a super-2 number, since 2×450265381² = 405477826654150322, 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 (450265301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836656 + ... + 837193.

It is an arithmetic number, because the mean of its divisors is an integer number (112984875).

Almost surely, 2^450265381 is an apocalyptic number.

It is an amenable number.

450265381 is a deficient number, since it is larger than the sum of its proper divisors (1674119).

450265381 is a wasteful number, since it uses less digits than its factorization.

450265381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674118.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 450265381 is about 21219.4576038126. The cubic root of 450265381 is about 766.4600427636.

The spelling of 450265381 in words is "four hundred fifty million, two hundred sixty-five thousand, three hundred eighty-one".