172842928 has 10 divisors (see below), whose sum is σ = 334883204. Its totient is φ = 86421456.

The previous prime is 172842913. The next prime is 172842931. The reversal of 172842928 is 829248271.

It is a super-2 number, since 2×172842928² = 59749355519226368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5401326 + ... + 5401357.

Almost surely, 2^172842928 is an apocalyptic number.

It is an amenable number.

172842928 is a deficient number, since it is larger than the sum of its proper divisors (162040276).

172842928 is a wasteful number, since it uses less digits than its factorization.

172842928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10802691 (or 10802685 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 172842928 is about 13146.9741005297. The cubic root of 172842928 is about 557.0367798548.

The spelling of 172842928 in words is "one hundred seventy-two million, eight hundred forty-two thousand, nine hundred twenty-eight".