451192920 has 64 divisors (see below), whose sum is σ = 1433207520. Its totient is φ = 113240064.

The previous prime is 451192871. The next prime is 451192927. The reversal of 451192920 is 29291154.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451192927) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 108547 + ... + 112626.

Almost surely, 2^451192920 is an apocalyptic number.

451192920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451192920 is an abundant number, since it is smaller than the sum of its proper divisors (982014600).

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

451192920 is a wasteful number, since it uses less digits than its factorization.

451192920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221204 (or 221200 counting only the distinct ones).

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

The square root of 451192920 is about 21241.3022199676. The cubic root of 451192920 is about 766.9859799904.

The spelling of 451192920 in words is "four hundred fifty-one million, one hundred ninety-two thousand, nine hundred twenty".