454893640 has 32 divisors (see below), whose sum is σ = 1024234560. Its totient is φ = 181828800.

The previous prime is 454893601. The next prime is 454893643. The reversal of 454893640 is 46398454.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (454893643) 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 7 ways as a sum of consecutive naturals, for example, 70135 + ... + 76345.

It is an arithmetic number, because the mean of its divisors is an integer number (32007330).

Almost surely, 2^454893640 is an apocalyptic number.

454893640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454893640 is an abundant number, since it is smaller than the sum of its proper divisors (569340920).

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

454893640 is a wasteful number, since it uses less digits than its factorization.

454893640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8053 (or 8049 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 454893640 is about 21328.2357451337. The cubic root of 454893640 is about 769.0772327104.

The spelling of 454893640 in words is "four hundred fifty-four million, eight hundred ninety-three thousand, six hundred forty".