171421344 has 72 divisors (see below), whose sum is σ = 513152640. Its totient is φ = 54131328.

The previous prime is 171421337. The next prime is 171421379. The reversal of 171421344 is 443124171.

171421344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10192 + ... + 21135.

It is an arithmetic number, because the mean of its divisors is an integer number (7127120).

Almost surely, 2^171421344 is an apocalyptic number.

It is an amenable number.

171421344 is an abundant number, since it is smaller than the sum of its proper divisors (341731296).

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

171421344 is a wasteful number, since it uses less digits than its factorization.

171421344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31362 (or 31351 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 171421344 is about 13092.7974092629. The cubic root of 171421344 is about 555.5054173656.

The spelling of 171421344 in words is "one hundred seventy-one million, four hundred twenty-one thousand, three hundred forty-four".