453000440 has 16 divisors (see below), whose sum is σ = 1019251080. Its totient is φ = 181200160.

The previous prime is 453000439. The next prime is 453000461. The reversal of 453000440 is 44000354.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 5662466 + ... + 5662545.

Almost surely, 2^453000440 is an apocalyptic number.

453000440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

453000440 is an abundant number, since it is smaller than the sum of its proper divisors (566250640).

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

453000440 is a wasteful number, since it uses less digits than its factorization.

453000440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11325022 (or 11325018 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 453000440 is about 21283.8069902919. The cubic root of 453000440 is about 768.0088206091.

Adding to 453000440 its reverse (44000354), we get a palindrome (497000794).

The spelling of 453000440 in words is "four hundred fifty-three million, four hundred forty", and thus it is an aban number.