172433440 has 96 divisors (see below), whose sum is σ = 423916416. Its totient is φ = 66232320.

The previous prime is 172433423. The next prime is 172433447. The reversal of 172433440 is 44334271.

It is a junction number, because it is equal to n+sod(n) for n = 172433399 and 172433408.

It is not an unprimeable number, because it can be changed into a prime (172433447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 488304 + ... + 488656.

It is an arithmetic number, because the mean of its divisors is an integer number (4415796).

Almost surely, 2^172433440 is an apocalyptic number.

172433440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172433440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (211958208).

172433440 is an abundant number, since it is smaller than the sum of its proper divisors (251482976).

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

172433440 is a wasteful number, since it uses less digits than its factorization.

172433440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 172433440 is about 13131.3913961926. The cubic root of 172433440 is about 556.5965338078.

The spelling of 172433440 in words is "one hundred seventy-two million, four hundred thirty-three thousand, four hundred forty".