451004120 has 128 divisors (see below), whose sum is σ = 1207664640. Its totient is φ = 148331520.

The previous prime is 451004111. The next prime is 451004129. The reversal of 451004120 is 21400154.

It is an interprime number because it is at equal distance from previous prime (451004111) and next prime (451004129).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451004129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1935524 + ... + 1935756.

It is an arithmetic number, because the mean of its divisors is an integer number (9434880).

Almost surely, 2^451004120 is an apocalyptic number.

451004120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 451004120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603832320).

451004120 is an abundant number, since it is smaller than the sum of its proper divisors (756660520).

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

451004120 is a wasteful number, since it uses less digits than its factorization.

451004120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 451004120 is about 21236.8575829853. The cubic root of 451004120 is about 766.8789842544.

Adding to 451004120 its reverse (21400154), we get a palindrome (472404274).

The spelling of 451004120 in words is "four hundred fifty-one million, four thousand, one hundred twenty".