451334421 has 6 divisors (see below), whose sum is σ = 651927510. Its totient is φ = 300889608.

The previous prime is 451334393. The next prime is 451334459. The reversal of 451334421 is 124433154.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 286083396 + 165251025 = 16914^2 + 12855^2 .

It is not a de Polignac number, because 451334421 - 2⁷ = 451334293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451334491) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25074126 + ... + 25074143.

It is an arithmetic number, because the mean of its divisors is an integer number (108654585).

Almost surely, 2^451334421 is an apocalyptic number.

It is an amenable number.

451334421 is a deficient number, since it is larger than the sum of its proper divisors (200593089).

451334421 is a wasteful number, since it uses less digits than its factorization.

451334421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50148275 (or 50148272 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 451334421 is about 21244.6327574755. The cubic root of 451334421 is about 767.0661511211.

Adding to 451334421 its reverse (124433154), we get a palindrome (575767575).

The spelling of 451334421 in words is "four hundred fifty-one million, three hundred thirty-four thousand, four hundred twenty-one".