451040004440 has 32 divisors (see below), whose sum is σ = 1016325928080. Its totient is φ = 180151838592.

The previous prime is 451040004431. The next prime is 451040004461. The reversal of 451040004440 is 44400040154.

It is a congruent number.

It is an unprimeable number.

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, 8227439 + ... + 8282078.

Almost surely, 2^451040004440 is an apocalyptic number.

451040004440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451040004440 is an abundant number, since it is smaller than the sum of its proper divisors (565285923640).

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

451040004440 is a wasteful number, since it uses less digits than its factorization.

451040004440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16510211 (or 16510207 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 26.

Adding to 451040004440 its reverse (44400040154), we get a palindrome (495440044594).

The spelling of 451040004440 in words is "four hundred fifty-one billion, forty million, four thousand, four hundred forty".