172048378 has 8 divisors (see below), whose sum is σ = 258153120. Its totient is φ = 85997340.

The previous prime is 172048367. The next prime is 172048379. The reversal of 172048378 is 873840271.

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

It is a self number, because there is not a number n which added to its sum of digits gives 172048378.

It is not an unprimeable number, because it can be changed into a prime (172048379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4128 + ... + 19003.

It is an arithmetic number, because the mean of its divisors is an integer number (32269140).

Almost surely, 2^172048378 is an apocalyptic number.

172048378 is a deficient number, since it is larger than the sum of its proper divisors (86104742).

172048378 is a wasteful number, since it uses less digits than its factorization.

172048378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26852.

The product of its (nonzero) digits is 75264, while the sum is 40.

The square root of 172048378 is about 13116.7213128891. The cubic root of 172048378 is about 556.1819121643.

The spelling of 172048378 in words is "one hundred seventy-two million, forty-eight thousand, three hundred seventy-eight".