172034730 has 96 divisors (see below), whose sum is σ = 541292544. Its totient is φ = 37006848.

The previous prime is 172034693. The next prime is 172034749. The reversal of 172034730 is 37430271.

It is a junction number, because it is equal to n+sod(n) for n = 172034694 and 172034703.

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, 2679 + ... + 18741.

It is an arithmetic number, because the mean of its divisors is an integer number (5638464).

Almost surely, 2^172034730 is an apocalyptic number.

172034730 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 172034730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270646272).

172034730 is an abundant number, since it is smaller than the sum of its proper divisors (369257814).

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

172034730 is a wasteful number, since it uses less digits than its factorization.

172034730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16100 (or 16097 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 172034730 is about 13116.2010506091. The cubic root of 172034730 is about 556.1672051159.

The spelling of 172034730 in words is "one hundred seventy-two million, thirty-four thousand, seven hundred thirty".