450656491 has 8 divisors (see below), whose sum is σ = 466923600. Its totient is φ = 434437920.

The previous prime is 450656489. The next prime is 450656513. The reversal of 450656491 is 194656054.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 450656491 - 2¹ = 450656489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (450651491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7321 + ... + 30901.

It is an arithmetic number, because the mean of its divisors is an integer number (58365450).

Almost surely, 2^450656491 is an apocalyptic number.

450656491 is a deficient number, since it is larger than the sum of its proper divisors (16267109).

450656491 is a wasteful number, since it uses less digits than its factorization.

450656491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24269.

The product of its (nonzero) digits is 129600, while the sum is 40.

The square root of 450656491 is about 21228.6714374687. The cubic root of 450656491 is about 766.6818996553.

The spelling of 450656491 in words is "four hundred fifty million, six hundred fifty-six thousand, four hundred ninety-one".