451439682 has 16 divisors (see below), whose sum is σ = 903692640. Its totient is φ = 150344352.

The previous prime is 451439663. The next prime is 451439683. The reversal of 451439682 is 286934154.

It is a super-2 number, since 2×451439682² = 407595572968522248, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (451439683) 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, 26548 + ... + 40095.

It is an arithmetic number, because the mean of its divisors is an integer number (56480790).

Almost surely, 2^451439682 is an apocalyptic number.

451439682 is an abundant number, since it is smaller than the sum of its proper divisors (452252958).

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

451439682 is a wasteful number, since it uses less digits than its factorization.

451439682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67777.

The product of its digits is 207360, while the sum is 42.

The square root of 451439682 is about 21247.1099681816. The cubic root of 451439682 is about 767.1257786539.

The spelling of 451439682 in words is "four hundred fifty-one million, four hundred thirty-nine thousand, six hundred eighty-two".