451109616 has 40 divisors (see below), whose sum is σ = 1205555280. Its totient is φ = 145184256.

The previous prime is 451109567. The next prime is 451109621. The reversal of 451109616 is 616901154.

It is a congruent number.

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, 160645 + ... + 163428.

It is an arithmetic number, because the mean of its divisors is an integer number (30138882).

Almost surely, 2^451109616 is an apocalyptic number.

It is an amenable number.

451109616 is an abundant number, since it is smaller than the sum of its proper divisors (754445664).

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

451109616 is a wasteful number, since it uses less digits than its factorization.

451109616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324113 (or 324107 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 451109616 is about 21239.3412327219. The cubic root of 451109616 is about 766.9387740689.

It can be divided in two parts, 451109 and 616, that added together give a triangular number (451725 = T₉₅₀).

The spelling of 451109616 in words is "four hundred fifty-one million, one hundred nine thousand, six hundred sixteen".