172826140 has 24 divisors (see below), whose sum is σ = 378715680. Its totient is φ = 66124608.

The previous prime is 172826123. The next prime is 172826153. The reversal of 172826140 is 41628271.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 187395 + ... + 188314.

It is an arithmetic number, because the mean of its divisors is an integer number (15779820).

Almost surely, 2^172826140 is an apocalyptic number.

172826140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172826140 is an abundant number, since it is smaller than the sum of its proper divisors (205889540).

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

172826140 is a wasteful number, since it uses less digits than its factorization.

172826140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375741 (or 375739 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 172826140 is about 13146.3356111123. The cubic root of 172826140 is about 557.0187445276.

The spelling of 172826140 in words is "one hundred seventy-two million, eight hundred twenty-six thousand, one hundred forty".