172492002 has 48 divisors (see below), whose sum is σ = 393257592. Its totient is φ = 54570240.

The previous prime is 172491959. The next prime is 172492003. The reversal of 172492002 is 200294271.

172492002 is a `hidden beast` number, since 172 + 492 + 0 + 0 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 142778601 + 29713401 = 11949^2 + 5451^2 .

It is not an unprimeable number, because it can be changed into a prime (172492003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24148 + ... + 30464.

Almost surely, 2^172492002 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172492002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196628796).

172492002 is an abundant number, since it is smaller than the sum of its proper divisors (220765590).

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

172492002 is a wasteful number, since it uses less digits than its factorization.

172492002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6403 (or 6400 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 172492002 is about 13133.6210543780. The cubic root of 172492002 is about 556.6595372811.

The spelling of 172492002 in words is "one hundred seventy-two million, four hundred ninety-two thousand, two".