32161632 has 96 divisors (see below), whose sum is σ = 88833024. Its totient is φ = 10176000.

The previous prime is 32161573. The next prime is 32161669. The reversal of 32161632 is 23616123.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

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, 300523 + ... + 300629.

It is an arithmetic number, because the mean of its divisors is an integer number (925344).

Almost surely, 2^32161632 is an apocalyptic number.

32161632 is a gapful number since it is divisible by the number (32) 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 32161632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44416512).

32161632 is an abundant number, since it is smaller than the sum of its proper divisors (56671392).

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

32161632 is a wasteful number, since it uses less digits than its factorization.

32161632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 244 counting only the distinct ones).

The product of its digits is 1296, while the sum is 24.

The square root of 32161632 is about 5671.1226401833. The cubic root of 32161632 is about 318.0138437864.

Adding to 32161632 its reverse (23616123), we get a palindrome (55777755).

The spelling of 32161632 in words is "thirty-two million, one hundred sixty-one thousand, six hundred thirty-two".