451680546 has 16 divisors (see below), whose sum is σ = 904202208. Its totient is φ = 150420000.

The previous prime is 451680529. The next prime is 451680547. The reversal of 451680546 is 645086154.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (451680547) 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 7 ways as a sum of consecutive naturals, for example, 27955 + ... + 41046.

It is an arithmetic number, because the mean of its divisors is an integer number (56512638).

Almost surely, 2^451680546 is an apocalyptic number.

451680546 is an abundant number, since it is smaller than the sum of its proper divisors (452521662).

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

451680546 is a wasteful number, since it uses less digits than its factorization.

451680546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70097.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 451680546 is about 21252.7773714402. Note that the first 3 decimals coincide. The cubic root of 451680546 is about 767.2621867862.

The spelling of 451680546 in words is "four hundred fifty-one million, six hundred eighty thousand, five hundred forty-six".