469189845 has 18 divisors (see below), whose sum is σ = 813514338. Its totient is φ = 250157088.

The previous prime is 469189843. The next prime is 469189871. The reversal of 469189845 is 548981964.

It can be written as a sum of positive squares in 3 ways, for example, as 6380676 + 462809169 = 2526^2 + 21513^2 .

It is not a de Polignac number, because 469189845 - 2¹ = 469189843 is a prime.

It is a super-2 number, since 2×469189845² = 440278221302248050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 469189791 and 469189800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469189841) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 143691 + ... + 146919.

It is an arithmetic number, because the mean of its divisors is an integer number (45195241).

Almost surely, 2^469189845 is an apocalyptic number.

469189845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

469189845 is a deficient number, since it is larger than the sum of its proper divisors (344324493).

469189845 is an frugal number, since it uses more digits than its factorization.

469189845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6469 (or 3237 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The square root of 469189845 is about 21660.7904980405. The cubic root of 469189845 is about 777.0510195426.

The spelling of 469189845 in words is "four hundred sixty-nine million, one hundred eighty-nine thousand, eight hundred forty-five".