469181945 has 16 divisors (see below), whose sum is σ = 588349440. Its totient is φ = 358505664.

The previous prime is 469181939. The next prime is 469181957. The reversal of 469181945 is 549181964.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-469181945 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 469181945.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89096 + ... + 94214.

It is an arithmetic number, because the mean of its divisors is an integer number (36771840).

Almost surely, 2^469181945 is an apocalyptic number.

It is an amenable number.

469181945 is a deficient number, since it is larger than the sum of its proper divisors (119167495).

469181945 is a wasteful number, since it uses less digits than its factorization.

469181945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5944.

The product of its digits is 311040, while the sum is 47.

The square root of 469181945 is about 21660.6081401239. The cubic root of 469181945 is about 777.0466583104.

The spelling of 469181945 in words is "four hundred sixty-nine million, one hundred eighty-one thousand, nine hundred forty-five".