172470012 has 72 divisors (see below), whose sum is σ = 476418768. Its totient is φ = 48238080.

The previous prime is 172470007. The next prime is 172470041. The reversal of 172470012 is 210074271.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14308 + ... + 23444.

Almost surely, 2^172470012 is an apocalyptic number.

172470012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172470012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238209384).

172470012 is an abundant number, since it is smaller than the sum of its proper divisors (303948756).

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

172470012 is a wasteful number, since it uses less digits than its factorization.

172470012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9179 (or 9166 counting only the distinct ones).

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 172470012 is about 13132.7838632942. The cubic root of 172470012 is about 556.6358811824.

The spelling of 172470012 in words is "one hundred seventy-two million, four hundred seventy thousand, twelve".