469845 has 24 divisors (see below), whose sum is σ = 833976. Its totient is φ = 244608.

The previous prime is 469841. The next prime is 469849. The reversal of 469845 is 548964.

It is an interprime number because it is at equal distance from previous prime (469841) and next prime (469849).

It can be written as a sum of positive squares in 4 ways, for example, as 221841 + 248004 = 471^2 + 498^2 .

It is not a de Polignac number, because 469845 - 2² = 469841 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 469845.

It is not an unprimeable number, because it can be changed into a prime (469841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2287 + ... + 2483.

It is an arithmetic number, because the mean of its divisors is an integer number (34749).

2⁴⁶⁹⁸⁴⁵ is an apocalyptic number.

469845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

469845 is a deficient number, since it is larger than the sum of its proper divisors (364131).

469845 is a wasteful number, since it uses less digits than its factorization.

469845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 258 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 469845 is about 685.4524053499. The cubic root of 469845 is about 77.7412530698.

Adding to 469845 its product of digits (34560), we get a palindrome (504405).

The spelling of 469845 in words is "four hundred sixty-nine thousand, eight hundred forty-five".