172929742 has 8 divisors (see below), whose sum is σ = 259457616. Its totient is φ = 86443872.

The previous prime is 172929733. The next prime is 172929769. The reversal of 172929742 is 247929271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3558 + ... + 18934.

It is an arithmetic number, because the mean of its divisors is an integer number (32432202).

Almost surely, 2^172929742 is an apocalyptic number.

172929742 is a deficient number, since it is larger than the sum of its proper divisors (86527874).

172929742 is a wasteful number, since it uses less digits than its factorization.

172929742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21002.

The product of its digits is 127008, while the sum is 43.

The square root of 172929742 is about 13150.2753583338. The cubic root of 172929742 is about 557.1300253956.

The spelling of 172929742 in words is "one hundred seventy-two million, nine hundred twenty-nine thousand, seven hundred forty-two".