32880421 has 6 divisors (see below), whose sum is σ = 38248710. Its totient is φ = 28183176.

The previous prime is 32880413. The next prime is 32880437. The reversal of 32880421 is 12408823.

It can be written as a sum of positive squares in only one way, i.e., 31203396 + 1677025 = 5586^2 + 1295^2 .

It is not a de Polignac number, because 32880421 - 2³ = 32880413 is a prime.

It is a super-2 number, since 2×32880421² = 2162244170274482, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32880421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32880481) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 335466 + ... + 335563.

It is an arithmetic number, because the mean of its divisors is an integer number (6374785).

Almost surely, 2^32880421 is an apocalyptic number.

It is an amenable number.

32880421 is a deficient number, since it is larger than the sum of its proper divisors (5368289).

32880421 is an equidigital number, since it uses as much as digits as its factorization.

32880421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671043 (or 671036 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 32880421 is about 5734.1451847682. The cubic root of 32880421 is about 320.3655360651.

The spelling of 32880421 in words is "thirty-two million, eight hundred eighty thousand, four hundred twenty-one".