451617216 has 28 divisors (see below), whose sum is σ = 1194904392. Its totient is φ = 150539008.

The previous prime is 451617209. The next prime is 451617217. The reversal of 451617216 is 612716154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451617217) 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, 1175895 + ... + 1176278.

Almost surely, 2^451617216 is an apocalyptic number.

It is an amenable number.

451617216 is an abundant number, since it is smaller than the sum of its proper divisors (743287176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

451617216 is a wasteful number, since it uses less digits than its factorization.

451617216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352188 (or 2352178 counting only the distinct ones).

The product of its digits is 10080, while the sum is 33.

The square root of 451617216 is about 21251.2873962967. The cubic root of 451617216 is about 767.2263259063.

The spelling of 451617216 in words is "four hundred fifty-one million, six hundred seventeen thousand, two hundred sixteen".