32040450 has 72 divisors (see below), whose sum is σ = 92720628. Its totient is φ = 7885440.

The previous prime is 32040443. The next prime is 32040451. The reversal of 32040450 is 5404023.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 17363889 + 14676561 = 4167^2 + 3831^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (32040451) 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 35 ways as a sum of consecutive naturals, for example, 3112 + ... + 8588.

Almost surely, 2^32040450 is an apocalyptic number.

32040450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 32040450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46360314).

32040450 is an abundant number, since it is smaller than the sum of its proper divisors (60680178).

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

32040450 is a wasteful number, since it uses less digits than its factorization.

32040450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508 (or 5500 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 32040450 is about 5660.4284290149. The cubic root of 32040450 is about 317.6139256774.

Adding to 32040450 its reverse (5404023), we get a palindrome (37444473).

The spelling of 32040450 in words is "thirty-two million, forty thousand, four hundred fifty".