32489478 has 128 divisors (see below), whose sum is σ = 89303040. Its totient is φ = 8553600.

The previous prime is 32489473. The next prime is 32489531. The reversal of 32489478 is 87498423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32489473) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 321628 + ... + 321728.

It is an arithmetic number, because the mean of its divisors is an integer number (697680).

Almost surely, 2^32489478 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32489478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44651520).

32489478 is an abundant number, since it is smaller than the sum of its proper divisors (56813562).

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

32489478 is a wasteful number, since it uses less digits than its factorization.

32489478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 173 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 32489478 is about 5699.9542103424. The cubic root of 32489478 is about 319.0907718871.

The spelling of 32489478 in words is "thirty-two million, four hundred eighty-nine thousand, four hundred seventy-eight".