172326460 has 12 divisors (see below), whose sum is σ = 361885608. Its totient is φ = 68930576.

The previous prime is 172326457. The next prime is 172326463. The reversal of 172326460 is 64623271.

It is an interprime number because it is at equal distance from previous prime (172326457) and next prime (172326463).

It is a super-2 number, since 2×172326460² = 59392817632263200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172326463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4308142 + ... + 4308181.

It is an arithmetic number, because the mean of its divisors is an integer number (30157134).

Almost surely, 2^172326460 is an apocalyptic number.

172326460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

172326460 is an abundant number, since it is smaller than the sum of its proper divisors (189559148).

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

172326460 is a wasteful number, since it uses less digits than its factorization.

172326460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8616332 (or 8616330 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 172326460 is about 13127.3173192393. The cubic root of 172326460 is about 556.4814033638.

The spelling of 172326460 in words is "one hundred seventy-two million, three hundred twenty-six thousand, four hundred sixty".