451053720 has 192 divisors, whose sum is σ = 1630137600. Its totient is φ = 107412480.

The previous prime is 451053719. The next prime is 451053727. The reversal of 451053720 is 27350154.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (451053727) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 143526 + ... + 146634.

It is an arithmetic number, because the mean of its divisors is an integer number (8490300).

Almost surely, 2^451053720 is an apocalyptic number.

451053720 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 451053720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (815068800).

451053720 is an abundant number, since it is smaller than the sum of its proper divisors (1179083880).

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

451053720 is a wasteful number, since it uses less digits than its factorization.

451053720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3170 (or 3163 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 451053720 is about 21238.0253319371. The cubic root of 451053720 is about 766.9070961951.

The spelling of 451053720 in words is "four hundred fifty-one million, fifty-three thousand, seven hundred twenty".