172432416 has 96 divisors (see below), whose sum is σ = 503290368. Its totient is φ = 51333120.

The previous prime is 172432409. The next prime is 172432423. The reversal of 172432416 is 614234271.

It is an interprime number because it is at equal distance from previous prime (172432409) and next prime (172432423).

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36460 + ... + 40916.

It is an arithmetic number, because the mean of its divisors is an integer number (5242608).

Almost surely, 2^172432416 is an apocalyptic number.

172432416 is a gapful number since it is divisible by the number (16) 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 172432416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251645184).

172432416 is an abundant number, since it is smaller than the sum of its proper divisors (330857952).

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

172432416 is a wasteful number, since it uses less digits than its factorization.

172432416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4514 (or 4506 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 172432416 is about 13131.3524055978. The cubic root of 172432416 is about 556.5954320184.

Adding to 172432416 its reverse (614234271), we get a palindrome (786666687).

The spelling of 172432416 in words is "one hundred seventy-two million, four hundred thirty-two thousand, four hundred sixteen".