173430432 has 72 divisors (see below), whose sum is σ = 563655456. Its totient is φ = 49550976.

The previous prime is 173430431. The next prime is 173430437. The reversal of 173430432 is 234034371.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×173430432² = 60156229487413248, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 173430396 and 173430405.

It is not an unprimeable number, because it can be changed into a prime (173430431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40998 + ... + 45029.

It is an arithmetic number, because the mean of its divisors is an integer number (7828548).

Almost surely, 2^173430432 is an apocalyptic number.

173430432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

173430432 is an abundant number, since it is smaller than the sum of its proper divisors (390225024).

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

173430432 is a wasteful number, since it uses less digits than its factorization.

173430432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86050 (or 86039 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 173430432 is about 13169.2988423834. The cubic root of 173430432 is about 557.6672004815.

The spelling of 173430432 in words is "one hundred seventy-three million, four hundred thirty thousand, four hundred thirty-two".