172765340 has 48 divisors (see below), whose sum is σ = 396766944. Its totient is φ = 62668800.

The previous prime is 172765283. The next prime is 172765343. The reversal of 172765340 is 43567271.

It is a self number, because there is not a number n which added to its sum of digits gives 172765340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172765343) by changing a digit.

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, 126260 + ... + 127620.

It is an arithmetic number, because the mean of its divisors is an integer number (8265978).

Almost surely, 2^172765340 is an apocalyptic number.

172765340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172765340 is an abundant number, since it is smaller than the sum of its proper divisors (224001604).

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

172765340 is a wasteful number, since it uses less digits than its factorization.

172765340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958 (or 1956 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 172765340 is about 13144.0229762429. The cubic root of 172765340 is about 556.9534173885.

The spelling of 172765340 in words is "one hundred seventy-two million, seven hundred sixty-five thousand, three hundred forty".