18450963 has 16 divisors (see below), whose sum is σ = 27405600. Its totient is φ = 12268800.

The previous prime is 18450961. The next prime is 18451019. The reversal of 18450963 is 36905481.

It is not a de Polignac number, because 18450963 - 2¹ = 18450961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18450961) 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, 14763 + ... + 15963.

It is an arithmetic number, because the mean of its divisors is an integer number (1712850).

Almost surely, 2^18450963 is an apocalyptic number.

18450963 is a deficient number, since it is larger than the sum of its proper divisors (8954637).

18450963 is a wasteful number, since it uses less digits than its factorization.

18450963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779 (or 1773 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 18450963 is about 4295.4584155827. The cubic root of 18450963 is about 264.2447368935.

The spelling of 18450963 in words is "eighteen million, four hundred fifty thousand, nine hundred sixty-three".