170438401 has 4 divisors (see below), whose sum is σ = 194786752. Its totient is φ = 146090052.

The previous prime is 170438399. The next prime is 170438459. The reversal of 170438401 is 104834071.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 104834071 = 2477 ⋅42323.

It is a cyclic number.

It is not a de Polignac number, because 170438401 - 2¹ = 170438399 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 170438401.

It is not an unprimeable number, because it can be changed into a prime (170438461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12174165 + ... + 12174178.

It is an arithmetic number, because the mean of its divisors is an integer number (48696688).

Almost surely, 2^170438401 is an apocalyptic number.

It is an amenable number.

170438401 is a deficient number, since it is larger than the sum of its proper divisors (24348351).

170438401 is an equidigital number, since it uses as much as digits as its factorization.

170438401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24348350.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 170438401 is about 13055.2058964997. The cubic root of 170438401 is about 554.4416113743.

The spelling of 170438401 in words is "one hundred seventy million, four hundred thirty-eight thousand, four hundred one".