169409044 has 24 divisors (see below), whose sum is σ = 342113408. Its totient is φ = 71897760.

The previous prime is 169409033. The next prime is 169409057. The reversal of 169409044 is 440904961.

It is a junction number, because it is equal to n+sod(n) for n = 169408994 and 169409012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26487 + ... + 32254.

Almost surely, 2^169409044 is an apocalyptic number.

169409044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

169409044 is an abundant number, since it is smaller than the sum of its proper divisors (172704364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

169409044 is a wasteful number, since it uses less digits than its factorization.

169409044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58855 (or 58853 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 169409044 is about 13015.7229534129. The cubic root of 169409044 is about 553.3231796011.

The spelling of 169409044 in words is "one hundred sixty-nine million, four hundred nine thousand, forty-four".