172442680 has 32 divisors (see below), whose sum is σ = 388436400. Its totient is φ = 68898816.

The previous prime is 172442659. The next prime is 172442723. The reversal of 172442680 is 86244271.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44251 + ... + 47989.

Almost surely, 2^172442680 is an apocalyptic number.

172442680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172442680 is an abundant number, since it is smaller than the sum of its proper divisors (215993720).

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

172442680 is a wasteful number, since it uses less digits than its factorization.

172442680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4903 (or 4899 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 172442680 is about 13131.7432201517. The cubic root of 172442680 is about 556.6064755378.

The spelling of 172442680 in words is "one hundred seventy-two million, four hundred forty-two thousand, six hundred eighty".