172634532 has 72 divisors (see below), whose sum is σ = 485948736. Its totient is φ = 46719936.

The previous prime is 172634519. The next prime is 172634533. The reversal of 172634532 is 235436271.

It is a junction number, because it is equal to n+sod(n) for n = 172634493 and 172634502.

It is not an unprimeable number, because it can be changed into a prime (172634533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27478 + ... + 33170.

It is an arithmetic number, because the mean of its divisors is an integer number (6749288).

Almost surely, 2^172634532 is an apocalyptic number.

172634532 is a gapful number since it is divisible by the number (12) 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 172634532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (242974368).

172634532 is an abundant number, since it is smaller than the sum of its proper divisors (313314204).

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

172634532 is a wasteful number, since it uses less digits than its factorization.

172634532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5745 (or 5724 counting only the distinct ones).

The product of its digits is 30240, while the sum is 33.

The square root of 172634532 is about 13139.0460840961. The cubic root of 172634532 is about 556.8128175103.

It can be divided in two parts, 172634 and 532, that added together give a triangular number (173166 = T₅₈₈).

The spelling of 172634532 in words is "one hundred seventy-two million, six hundred thirty-four thousand, five hundred thirty-two".