172314420 has 48 divisors (see below), whose sum is σ = 507877440. Its totient is φ = 43531776.

The previous prime is 172314409. The next prime is 172314427. The reversal of 172314420 is 24413271.

It is a happy number.

It is a super-3 number, since 3×172314420³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172314427) 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 15 ways as a sum of consecutive naturals, for example, 74437 + ... + 76716.

It is an arithmetic number, because the mean of its divisors is an integer number (10580780).

Almost surely, 2^172314420 is an apocalyptic number.

172314420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172314420 is an abundant number, since it is smaller than the sum of its proper divisors (335563020).

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

172314420 is a wasteful number, since it uses less digits than its factorization.

172314420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151184 (or 151182 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 172314420 is about 13126.8587255291. The cubic root of 172314420 is about 556.4684430942.

Adding to 172314420 its reverse (24413271), we get a palindrome (196727691).

The spelling of 172314420 in words is "one hundred seventy-two million, three hundred fourteen thousand, four hundred twenty".