172973342 has 16 divisors (see below), whose sum is σ = 274957200. Its totient is φ = 81466560.

The previous prime is 172973329. The next prime is 172973393. The reversal of 172973342 is 243379271.

It is a junction number, because it is equal to n+sod(n) for n = 172973296 and 172973305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33992 + ... + 38747.

It is an arithmetic number, because the mean of its divisors is an integer number (17184825).

Almost surely, 2^172973342 is an apocalyptic number.

172973342 is a deficient number, since it is larger than the sum of its proper divisors (101983858).

172973342 is a wasteful number, since it uses less digits than its factorization.

172973342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72811.

The product of its digits is 63504, while the sum is 38.

The square root of 172973342 is about 13151.9330138197. The cubic root of 172973342 is about 557.1768436924.

The spelling of 172973342 in words is "one hundred seventy-two million, nine hundred seventy-three thousand, three hundred forty-two".