102166428 has 48 divisors (see below), whose sum is σ = 293404160. Its totient is φ = 26944704.

The previous prime is 102166417. The next prime is 102166429. The reversal of 102166428 is 824661201.

It is a junction number, because it is equal to n+sod(n) for n = 102166395 and 102166404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102166429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45688 + ... + 47871.

Almost surely, 2^102166428 is an apocalyptic number.

It is an amenable number.

102166428 is an abundant number, since it is smaller than the sum of its proper divisors (191237732).

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

102166428 is a wasteful number, since it uses less digits than its factorization.

102166428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93586 (or 93584 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 102166428 is about 10107.7409939115. The cubic root of 102166428 is about 467.4868544637.

The spelling of 102166428 in words is "one hundred two million, one hundred sixty-six thousand, four hundred twenty-eight".