172401064 has 64 divisors (see below), whose sum is σ = 366871680. Its totient is φ = 75264000.

The previous prime is 172401059. The next prime is 172401071. The reversal of 172401064 is 460104271.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255832 + ... + 256504.

It is an arithmetic number, because the mean of its divisors is an integer number (5732370).

Almost surely, 2^172401064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172401064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183435840).

172401064 is an abundant number, since it is smaller than the sum of its proper divisors (194470616).

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

172401064 is a wasteful number, since it uses less digits than its factorization.

172401064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 172401064 is about 13130.1585672070. The cubic root of 172401064 is about 556.5616962161.

The spelling of 172401064 in words is "one hundred seventy-two million, four hundred one thousand, sixty-four".