451991482 has 16 divisors (see below), whose sum is σ = 703500840. Its totient is φ = 217617408.

The previous prime is 451991479. The next prime is 451991497. The reversal of 451991482 is 284199154.

It can be written as a sum of positive squares in 4 ways, for example, as 441042001 + 10949481 = 21001^2 + 3309^2 .

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24307 + ... + 38662.

Almost surely, 2^451991482 is an apocalyptic number.

451991482 is a deficient number, since it is larger than the sum of its proper divisors (251509358).

451991482 is a wasteful number, since it uses less digits than its factorization.

451991482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63105.

The product of its digits is 103680, while the sum is 43.

The square root of 451991482 is about 21260.0912980166. The cubic root of 451991482 is about 767.4382069955.

The spelling of 451991482 in words is "four hundred fifty-one million, nine hundred ninety-one thousand, four hundred eighty-two".