454861656 has 160 divisors (see below), whose sum is σ = 1362731040. Its totient is φ = 141253632.

The previous prime is 454861651. The next prime is 454861669. The reversal of 454861656 is 656168454.

454861656 is a `hidden beast` number, since 4 + 5 + 486 + 165 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (454861651) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1729381 + ... + 1729643.

It is an arithmetic number, because the mean of its divisors is an integer number (8517069).

Almost surely, 2^454861656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 454861656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (681365520).

454861656 is an abundant number, since it is smaller than the sum of its proper divisors (907869384).

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

454861656 is a wasteful number, since it uses less digits than its factorization.

454861656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 442 counting only the distinct ones).

The product of its digits is 691200, while the sum is 45.

The square root of 454861656 is about 21327.4859277881. The cubic root of 454861656 is about 769.0592074399.

The spelling of 454861656 in words is "four hundred fifty-four million, eight hundred sixty-one thousand, six hundred fifty-six".