32030221990 has 32 divisors (see below), whose sum is σ = 62097741216. Its totient is φ = 11824945920.

The previous prime is 32030221963. The next prime is 32030221991. The reversal of 32030221990 is 9912203023.

It is a happy number.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32030221991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1433605 + ... + 1455775.

It is an arithmetic number, because the mean of its divisors is an integer number (1940554413).

Almost surely, 2^32030221990 is an apocalyptic number.

32030221990 is a deficient number, since it is larger than the sum of its proper divisors (30067519226).

32030221990 is a wasteful number, since it uses less digits than its factorization.

32030221990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33304.

The product of its (nonzero) digits is 5832, while the sum is 31.

The spelling of 32030221990 in words is "thirty-two billion, thirty million, two hundred twenty-one thousand, nine hundred ninety".