169472439 has 32 divisors (see below), whose sum is σ = 267079680. Its totient is φ = 105840000.

The previous prime is 169472431. The next prime is 169472449. The reversal of 169472439 is 934274961.

It is a happy number.

It is not a de Polignac number, because 169472439 - 2³ = 169472431 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 169472394 and 169472403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169472431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114474 + ... + 115944.

It is an arithmetic number, because the mean of its divisors is an integer number (8346240).

Almost surely, 2^169472439 is an apocalyptic number.

169472439 is a deficient number, since it is larger than the sum of its proper divisors (97607241).

169472439 is a wasteful number, since it uses less digits than its factorization.

169472439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1748 (or 1742 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 169472439 is about 13018.1580494323. The cubic root of 169472439 is about 553.3921911633.

The spelling of 169472439 in words is "one hundred sixty-nine million, four hundred seventy-two thousand, four hundred thirty-nine".