450749961 has 32 divisors (see below), whose sum is σ = 686672640. Its totient is φ = 292118400.

The previous prime is 450749953. The next prime is 450749963. The reversal of 450749961 is 169947054.

It is not a de Polignac number, because 450749961 - 2³ = 450749953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (450749963) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138331 + ... + 141551.

It is an arithmetic number, because the mean of its divisors is an integer number (21458520).

Almost surely, 2^450749961 is an apocalyptic number.

It is an amenable number.

450749961 is a deficient number, since it is larger than the sum of its proper divisors (235922679).

450749961 is a wasteful number, since it uses less digits than its factorization.

450749961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3374 (or 3368 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 450749961 is about 21230.8728270884. The cubic root of 450749961 is about 766.7349014462.

The spelling of 450749961 in words is "four hundred fifty million, seven hundred forty-nine thousand, nine hundred sixty-one".