172352340 has 96 divisors (see below), whose sum is σ = 559560960. Its totient is φ = 43959168.

The previous prime is 172352333. The next prime is 172352347. The reversal of 172352340 is 43253271.

It is an interprime number because it is at equal distance from previous prime (172352333) and next prime (172352347).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172352347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5482 + ... + 19358.

It is an arithmetic number, because the mean of its divisors is an integer number (5828760).

Almost surely, 2^172352340 is an apocalyptic number.

172352340 is a gapful number since it is divisible by the number (10) 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 172352340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279780480).

172352340 is an abundant number, since it is smaller than the sum of its proper divisors (387208620).

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

172352340 is a wasteful number, since it uses less digits than its factorization.

172352340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13918 (or 13910 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 172352340 is about 13128.3030129564. The cubic root of 172352340 is about 556.5092594415.

The spelling of 172352340 in words is "one hundred seventy-two million, three hundred fifty-two thousand, three hundred forty".