172242008 has 8 divisors (see below), whose sum is σ = 322953780. Its totient is φ = 86121000.

The previous prime is 172241999. The next prime is 172242013. The reversal of 172242008 is 800242271.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10765118 + ... + 10765133.

Almost surely, 2^172242008 is an apocalyptic number.

It is an amenable number.

172242008 is a deficient number, since it is larger than the sum of its proper divisors (150711772).

172242008 is a wasteful number, since it uses less digits than its factorization.

172242008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21530257 (or 21530253 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 172242008 is about 13124.1002739235. The cubic root of 172242008 is about 556.3904835931.

Adding to 172242008 its reverse (800242271), we get a palindrome (972484279).

The spelling of 172242008 in words is "one hundred seventy-two million, two hundred forty-two thousand, eight".