170428902 has 32 divisors (see below), whose sum is σ = 390009600. Its totient is φ = 48636768.

The previous prime is 170428891. The next prime is 170428957. The reversal of 170428902 is 209824071.

It is a happy number.

170428902 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44749 + ... + 48407.

It is an arithmetic number, because the mean of its divisors is an integer number (12187800).

Almost surely, 2^170428902 is an apocalyptic number.

170428902 is an abundant number, since it is smaller than the sum of its proper divisors (219580698).

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

170428902 is a wasteful number, since it uses less digits than its factorization.

170428902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 170428902 is about 13054.8420901978. The cubic root of 170428902 is about 554.4313109985.

The spelling of 170428902 in words is "one hundred seventy million, four hundred twenty-eight thousand, nine hundred two".