450045261 has 8 divisors (see below), whose sum is σ = 666733760. Its totient is φ = 300030156.

The previous prime is 450045187. The next prime is 450045263. The reversal of 450045261 is 162540054.

It is not a de Polignac number, because 450045261 - 2⁷ = 450045133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 16668343 = 450045261 / (4 + 5 + 0 + 0 + 4 + 5 + 2 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (450045263) 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, 8334145 + ... + 8334198.

It is an arithmetic number, because the mean of its divisors is an integer number (83341720).

Almost surely, 2^450045261 is an apocalyptic number.

It is an amenable number.

450045261 is a deficient number, since it is larger than the sum of its proper divisors (216688499).

450045261 is a wasteful number, since it uses less digits than its factorization.

450045261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16668352 (or 16668346 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 450045261 is about 21214.2702207736. The cubic root of 450045261 is about 766.3351233331.

The spelling of 450045261 in words is "four hundred fifty million, forty-five thousand, two hundred sixty-one".