170220030 has 32 divisors (see below), whose sum is σ = 410479488. Its totient is φ = 45175200.

The previous prime is 170219989. The next prime is 170220049. The reversal of 170220030 is 30022071.

It is a super-2 number, since 2×170220030² = 57949717226401800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 170219991 and 170220009.

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, 7116 + ... + 19775.

It is an arithmetic number, because the mean of its divisors is an integer number (12827484).

Almost surely, 2^170220030 is an apocalyptic number.

170220030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

170220030 is an abundant number, since it is smaller than the sum of its proper divisors (240259458).

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

170220030 is a wasteful number, since it uses less digits than its factorization.

170220030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27112.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 170220030 is about 13046.8398472580. The cubic root of 170220030 is about 554.2047208747.

The spelling of 170220030 in words is "one hundred seventy million, two hundred twenty thousand, thirty".