32245821 has 24 divisors (see below), whose sum is σ = 49533120. Its totient is φ = 20144256.

The previous prime is 32245819. The next prime is 32245877. The reversal of 32245821 is 12854223.

It is not a de Polignac number, because 32245821 - 2¹ = 32245819 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32245891) 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, 63856 + ... + 64358.

It is an arithmetic number, because the mean of its divisors is an integer number (2063880).

Almost surely, 2^32245821 is an apocalyptic number.

It is an amenable number.

32245821 is a deficient number, since it is larger than the sum of its proper divisors (17287299).

32245821 is a wasteful number, since it uses less digits than its factorization.

32245821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 945 (or 942 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 32245821 is about 5678.5403934462. The cubic root of 32245821 is about 318.2910886319.

It can be divided in two parts, 3224 and 5821, that added together give a triangular number (9045 = T₁₃₄).

The spelling of 32245821 in words is "thirty-two million, two hundred forty-five thousand, eight hundred twenty-one".