454466640 has 80 divisors (see below), whose sum is σ = 1411034688. Its totient is φ = 121003008.

The previous prime is 454466629. The next prime is 454466647. The reversal of 454466640 is 46664454.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454466647) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 227727 + ... + 229713.

Almost surely, 2^454466640 is an apocalyptic number.

454466640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

454466640 is an abundant number, since it is smaller than the sum of its proper divisors (956568048).

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

454466640 is a wasteful number, since it uses less digits than its factorization.

454466640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956 (or 2950 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 39.

The square root of 454466640 is about 21318.2231905007. The cubic root of 454466640 is about 768.8365179908.

The spelling of 454466640 in words is "four hundred fifty-four million, four hundred sixty-six thousand, six hundred forty".