450221534 has 16 divisors (see below), whose sum is σ = 774684000. Its totient is φ = 192233184.

The previous prime is 450221531. The next prime is 450221537. The reversal of 450221534 is 435122054.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (450221531) and next prime (450221537).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450221531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56009 + ... + 63540.

It is an arithmetic number, because the mean of its divisors is an integer number (48417750).

Almost surely, 2^450221534 is an apocalyptic number.

450221534 is a deficient number, since it is larger than the sum of its proper divisors (324462466).

450221534 is a wasteful number, since it uses less digits than its factorization.

450221534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119827.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 450221534 is about 21218.4243995637. The cubic root of 450221534 is about 766.4351625738.

Adding to 450221534 its reverse (435122054), we get a palindrome (885343588).

The spelling of 450221534 in words is "four hundred fifty million, two hundred twenty-one thousand, five hundred thirty-four".