23420169 has 12 divisors (see below), whose sum is σ = 35819316. Its totient is φ = 14694912.

The previous prime is 23420167. The next prime is 23420171. The reversal of 23420169 is 96102432.

It is an interprime number because it is at equal distance from previous prime (23420167) and next prime (23420171).

It can be written as a sum of positive squares in 2 ways, for example, as 11309769 + 12110400 = 3363^2 + 3480^2 .

It is not a de Polignac number, because 23420169 - 2¹ = 23420167 is a prime.

It is a super-3 number, since 3×23420169³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23420167) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 76384 + ... + 76689.

It is an arithmetic number, because the mean of its divisors is an integer number (2984943).

Almost surely, 2^23420169 is an apocalyptic number.

It is an amenable number.

23420169 is a deficient number, since it is larger than the sum of its proper divisors (12399147).

23420169 is a wasteful number, since it uses less digits than its factorization.

23420169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153096 (or 153093 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 23420169 is about 4839.4389137585. The cubic root of 23420169 is about 286.1080044265.

It can be divided in two parts, 234201 and 69, that added together give a triangular number (234270 = T₆₈₄).

The spelling of 23420169 in words is "twenty-three million, four hundred twenty thousand, one hundred sixty-nine".