453739728 has 80 divisors (see below), whose sum is σ = 1267793856. Its totient is φ = 139008000.

The previous prime is 453739721. The next prime is 453739751. The reversal of 453739728 is 827937354.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453739721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155176 + ... + 158072.

Almost surely, 2^453739728 is an apocalyptic number.

453739728 is a gapful number since it is divisible by the number (48) 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 453739728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633896928).

453739728 is an abundant number, since it is smaller than the sum of its proper divisors (814054128).

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

453739728 is a wasteful number, since it uses less digits than its factorization.

453739728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3172 (or 3166 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 48.

The square root of 453739728 is about 21301.1672919584. The cubic root of 453739728 is about 768.4263854104.

The spelling of 453739728 in words is "four hundred fifty-three million, seven hundred thirty-nine thousand, seven hundred twenty-eight".