169390441 has 24 divisors (see below), whose sum is σ = 191485952. Its totient is φ = 149688000.

The previous prime is 169390409. The next prime is 169390489. The reversal of 169390441 is 144093961.

It is not a de Polignac number, because 169390441 - 2⁵ = 169390409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169390441.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169394441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1121716 + ... + 1121866.

Almost surely, 2^169390441 is an apocalyptic number.

169390441 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

169390441 is a deficient number, since it is larger than the sum of its proper divisors (22095511).

169390441 is a wasteful number, since it uses less digits than its factorization.

169390441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 169390441 is about 13015.0082981149. The cubic root of 169390441 is about 553.3029251769.

The spelling of 169390441 in words is "one hundred sixty-nine million, three hundred ninety thousand, four hundred forty-one".