453945656 has 8 divisors (see below), whose sum is σ = 851148120. Its totient is φ = 226972824.

The previous prime is 453945629. The next prime is 453945659. The reversal of 453945656 is 656549354.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 453945656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (453945659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28371596 + ... + 28371611.

It is an arithmetic number, because the mean of its divisors is an integer number (106393515).

Almost surely, 2^453945656 is an apocalyptic number.

It is an amenable number.

453945656 is a deficient number, since it is larger than the sum of its proper divisors (397202464).

453945656 is a wasteful number, since it uses less digits than its factorization.

453945656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56743213 (or 56743209 counting only the distinct ones).

The product of its digits is 1944000, while the sum is 47.

The square root of 453945656 is about 21306.0004693514. Note that the first 3 decimals coincide. The cubic root of 453945656 is about 768.5426169311.

The spelling of 453945656 in words is "four hundred fifty-three million, nine hundred forty-five thousand, six hundred fifty-six".