170625042 has 80 divisors (see below), whose sum is σ = 439200960. Its totient is φ = 48498912.

The previous prime is 170625041. The next prime is 170625043. The reversal of 170625042 is 240526071.

It is an interprime number because it is at equal distance from previous prime (170625041) and next prime (170625043).

It is a super-2 number, since 2×170625042² = 58225809915003528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 170624997 and 170625015.

It is not an unprimeable number, because it can be changed into a prime (170625041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 429588 + ... + 429984.

It is an arithmetic number, because the mean of its divisors is an integer number (5490012).

Almost surely, 2^170625042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 170625042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219600480).

170625042 is an abundant number, since it is smaller than the sum of its proper divisors (268575918).

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

170625042 is a wasteful number, since it uses less digits than its factorization.

170625042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797 (or 788 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 170625042 is about 13062.3520852869. The cubic root of 170625042 is about 554.6439206077.

The spelling of 170625042 in words is "one hundred seventy million, six hundred twenty-five thousand, forty-two".