170428624 has 20 divisors (see below), whose sum is σ = 330443136. Its totient is φ = 85152992.

The previous prime is 170428619. The next prime is 170428667. The reversal of 170428624 is 426824071.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 170428624.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26247 + ... + 32089.

Almost surely, 2^170428624 is an apocalyptic number.

It is an amenable number.

170428624 is a deficient number, since it is larger than the sum of its proper divisors (160014512).

170428624 is a wasteful number, since it uses less digits than its factorization.

170428624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7674 (or 7668 counting only the distinct ones).

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

The square root of 170428624 is about 13054.8314428031. The cubic root of 170428624 is about 554.4310095395.

The spelling of 170428624 in words is "one hundred seventy million, four hundred twenty-eight thousand, six hundred twenty-four".