32402272 has 96 divisors (see below), whose sum is σ = 78962688. Its totient is φ = 12773376.

The previous prime is 32402261. The next prime is 32402273. The reversal of 32402272 is 27220423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32402273) 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, 255073 + ... + 255199.

It is an arithmetic number, because the mean of its divisors is an integer number (822528).

Almost surely, 2^32402272 is an apocalyptic number.

32402272 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 32402272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39481344).

32402272 is an abundant number, since it is smaller than the sum of its proper divisors (46560416).

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

32402272 is a wasteful number, since it uses less digits than its factorization.

32402272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 220 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 32402272 is about 5692.2993596613. The cubic root of 32402272 is about 318.8050223098.

Adding to 32402272 its reverse (27220423), we get a palindrome (59622695).

The spelling of 32402272 in words is "thirty-two million, four hundred two thousand, two hundred seventy-two".