32245820 has 24 divisors (see below), whose sum is σ = 68828928. Its totient is φ = 12686400.

The previous prime is 32245819. The next prime is 32245877. The reversal of 32245820 is 2854223.

It is a self number, because there is not a number n which added to its sum of digits gives 32245820.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11996 + ... + 14435.

It is an arithmetic number, because the mean of its divisors is an integer number (2867872).

Almost surely, 2^32245820 is an apocalyptic number.

It is an amenable number.

32245820 is an abundant number, since it is smaller than the sum of its proper divisors (36583108).

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

32245820 is a wasteful number, since it uses less digits than its factorization.

32245820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26501 (or 26499 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 32245820 is about 5678.5403053954. The cubic root of 32245820 is about 318.2910853417.

The spelling of 32245820 in words is "thirty-two million, two hundred forty-five thousand, eight hundred twenty".