454491648 has 240 divisors, whose sum is σ = 1470124656. Its totient is φ = 139345920.

The previous prime is 454491637. The next prime is 454491671. The reversal of 454491648 is 846194454.

454491648 is a `hidden beast` number, since 45 + 449 + 164 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1617268 + ... + 1617548.

Almost surely, 2^454491648 is an apocalyptic number.

454491648 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 454491648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (735062328).

454491648 is an abundant number, since it is smaller than the sum of its proper divisors (1015633008).

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

454491648 is an equidigital number, since it uses as much as digits as its factorization.

454491648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327 (or 299 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 454491648 is about 21318.8097228715. The cubic root of 454491648 is about 768.8506200240.

The spelling of 454491648 in words is "four hundred fifty-four million, four hundred ninety-one thousand, six hundred forty-eight".