451996321 has 8 divisors (see below), whose sum is σ = 527558400. Its totient is φ = 379182048.

The previous prime is 451996319. The next prime is 451996331. The reversal of 451996321 is 123699154.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 451996321 - 2¹ = 451996319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451996331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686596 + ... + 687253.

It is an arithmetic number, because the mean of its divisors is an integer number (65944800).

Almost surely, 2^451996321 is an apocalyptic number.

It is an amenable number.

451996321 is a deficient number, since it is larger than the sum of its proper divisors (75562079).

451996321 is a wasteful number, since it uses less digits than its factorization.

451996321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1373903.

The product of its digits is 58320, while the sum is 40.

The square root of 451996321 is about 21260.2051024914. The cubic root of 451996321 is about 767.4409457051.

The spelling of 451996321 in words is "four hundred fifty-one million, nine hundred ninety-six thousand, three hundred twenty-one".