451282440 has 64 divisors (see below), whose sum is σ = 1547256960. Its totient is φ = 103150080.

The previous prime is 451282411. The next prime is 451282441. The reversal of 451282440 is 44282154.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 451282398 and 451282407.

It is not an unprimeable number, because it can be changed into a prime (451282441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 267781 + ... + 269460.

It is an arithmetic number, because the mean of its divisors is an integer number (24175890).

Almost surely, 2^451282440 is an apocalyptic number.

451282440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

451282440 is an abundant number, since it is smaller than the sum of its proper divisors (1095974520).

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

451282440 is a wasteful number, since it uses less digits than its factorization.

451282440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537262 (or 537258 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 30.

The square root of 451282440 is about 21243.4093308960. The cubic root of 451282440 is about 767.0367018594.

The spelling of 451282440 in words is "four hundred fifty-one million, two hundred eighty-two thousand, four hundred forty".