172005342 has 16 divisors (see below), whose sum is σ = 344142480. Its totient is φ = 57313152.

The previous prime is 172005331. The next prime is 172005343. The reversal of 172005342 is 243500271.

172005342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172005343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22284 + ... + 28992.

It is an arithmetic number, because the mean of its divisors is an integer number (21508905).

Almost surely, 2^172005342 is an apocalyptic number.

172005342 is an abundant number, since it is smaller than the sum of its proper divisors (172137138).

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

172005342 is a wasteful number, since it uses less digits than its factorization.

172005342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10987.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 172005342 is about 13115.0807088634. The cubic root of 172005342 is about 556.1355340446.

The spelling of 172005342 in words is "one hundred seventy-two million, five thousand, three hundred forty-two".