172050030 has 96 divisors (see below), whose sum is σ = 477640800. Its totient is φ = 42817536.

The previous prime is 172050023. The next prime is 172050049. The reversal of 172050030 is 30050271.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 172049985 and 172050012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 212266 + ... + 213074.

It is an arithmetic number, because the mean of its divisors is an integer number (4975425).

Almost surely, 2^172050030 is an apocalyptic number.

172050030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 172050030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238820400).

172050030 is an abundant number, since it is smaller than the sum of its proper divisors (305590770).

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

172050030 is a wasteful number, since it uses less digits than its factorization.

172050030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 978 (or 975 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 172050030 is about 13116.7842857920. The cubic root of 172050030 is about 556.1836923023.

The spelling of 172050030 in words is "one hundred seventy-two million, fifty thousand, thirty".