451989112 has 8 divisors (see below), whose sum is σ = 847479600. Its totient is φ = 225994552.

The previous prime is 451989089. The next prime is 451989113. The reversal of 451989112 is 211989154.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451989113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28249312 + ... + 28249327.

It is an arithmetic number, because the mean of its divisors is an integer number (105934950).

Almost surely, 2^451989112 is an apocalyptic number.

It is an amenable number.

451989112 is a deficient number, since it is larger than the sum of its proper divisors (395490488).

451989112 is a wasteful number, since it uses less digits than its factorization.

451989112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56498645 (or 56498641 counting only the distinct ones).

The product of its digits is 25920, while the sum is 40.

The square root of 451989112 is about 21260.0355597069. The cubic root of 451989112 is about 767.4368656489.

The spelling of 451989112 in words is "four hundred fifty-one million, nine hundred eighty-nine thousand, one hundred twelve".