451340120 has 64 divisors (see below), whose sum is σ = 1266105600. Its totient is φ = 140676480.

The previous prime is 451340119. The next prime is 451340143. The reversal of 451340120 is 21043154.

It is a super-2 number, since 2×451340120² = 407415807843228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 451340092 and 451340101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70190 + ... + 76349.

It is an arithmetic number, because the mean of its divisors is an integer number (19782900).

Almost surely, 2^451340120 is an apocalyptic number.

451340120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451340120 is an abundant number, since it is smaller than the sum of its proper divisors (814765480).

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

451340120 is a wasteful number, since it uses less digits than its factorization.

451340120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146568 (or 146564 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 451340120 is about 21244.7668850472. The cubic root of 451340120 is about 767.0693796891.

Adding to 451340120 its reverse (21043154), we get a palindrome (472383274).

The spelling of 451340120 in words is "four hundred fifty-one million, three hundred forty thousand, one hundred twenty".