454605640 has 32 divisors (see below), whose sum is σ = 1023684480. Its totient is φ = 181696192.

The previous prime is 454605637. The next prime is 454605673. The reversal of 454605640 is 46506454.

It is a junction number, because it is equal to n+sod(n) for n = 454605596 and 454605605.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55659 + ... + 63301.

It is an arithmetic number, because the mean of its divisors is an integer number (31990140).

Almost surely, 2^454605640 is an apocalyptic number.

454605640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454605640 is an abundant number, since it is smaller than the sum of its proper divisors (569078840).

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

454605640 is a wasteful number, since it uses less digits than its factorization.

454605640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141 (or 9137 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The square root of 454605640 is about 21321.4830628641. The cubic root of 454605640 is about 768.9148936610.

The spelling of 454605640 in words is "four hundred fifty-four million, six hundred five thousand, six hundred forty".