451389468 has 24 divisors (see below), whose sum is σ = 1056681472. Its totient is φ = 149971824.

The previous prime is 451389439. The next prime is 451389469. The reversal of 451389468 is 864983154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451389469) 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, 57580 + ... + 64947.

Almost surely, 2^451389468 is an apocalyptic number.

It is an amenable number.

451389468 is an abundant number, since it is smaller than the sum of its proper divisors (605292004).

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

451389468 is a wasteful number, since it uses less digits than its factorization.

451389468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122841 (or 122839 counting only the distinct ones).

The product of its digits is 829440, while the sum is 48.

The square root of 451389468 is about 21245.9282687295. The cubic root of 451389468 is about 767.0973349262.

The spelling of 451389468 in words is "four hundred fifty-one million, three hundred eighty-nine thousand, four hundred sixty-eight".