450370661 has 16 divisors (see below), whose sum is σ = 511842240. Its totient is φ = 392843520.

The previous prime is 450370651. The next prime is 450370673. The reversal of 450370661 is 166073054.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-450370661 is a prime.

It is a Smith number, since the sum of its digits (32) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450370601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104846 + ... + 109056.

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

Almost surely, 2^450370661 is an apocalyptic number.

It is an amenable number.

450370661 is a deficient number, since it is larger than the sum of its proper divisors (61471579).

450370661 is a wasteful number, since it uses less digits than its factorization.

450370661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4676.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 450370661 is about 21221.9382008336. The cubic root of 450370661 is about 766.5197754075.

The spelling of 450370661 in words is "four hundred fifty million, three hundred seventy thousand, six hundred sixty-one".