169426444 has 24 divisors (see below), whose sum is σ = 324894528. Its totient is φ = 76668240.

The previous prime is 169426429. The next prime is 169426469. The reversal of 169426444 is 444624961.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 169426397 and 169426406.

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, 1507 + ... + 18469.

It is an arithmetic number, because the mean of its divisors is an integer number (13537272).

Almost surely, 2^169426444 is an apocalyptic number.

It is an amenable number.

169426444 is a deficient number, since it is larger than the sum of its proper divisors (155468084).

169426444 is a wasteful number, since it uses less digits than its factorization.

169426444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17205 (or 17203 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 169426444 is about 13016.3913585909. The cubic root of 169426444 is about 553.3421228907.

The spelling of 169426444 in words is "one hundred sixty-nine million, four hundred twenty-six thousand, four hundred forty-four".