32869920 has 144 divisors (see below), whose sum is σ = 109202688. Its totient is φ = 8302080.

The previous prime is 32869913. The next prime is 32869927. The reversal of 32869920 is 2996823.

It is an interprime number because it is at equal distance from previous prime (32869913) and next prime (32869927).

It is not an unprimeable number, because it can be changed into a prime (32869927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 699337 + ... + 699383.

It is an arithmetic number, because the mean of its divisors is an integer number (758352).

Almost surely, 2^32869920 is an apocalyptic number.

32869920 is a gapful number since it is divisible by the number (30) 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 32869920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54601344).

32869920 is an abundant number, since it is smaller than the sum of its proper divisors (76332768).

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

32869920 is a wasteful number, since it uses less digits than its factorization.

32869920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 88 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 32869920 is about 5733.2294564233. The cubic root of 32869920 is about 320.3314274518.

The spelling of 32869920 in words is "thirty-two million, eight hundred sixty-nine thousand, nine hundred twenty".