32020990 has 8 divisors (see below), whose sum is σ = 57637800. Its totient is φ = 12808392.

The previous prime is 32020973. The next prime is 32020993. The reversal of 32020990 is 9902023.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32020993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1601040 + ... + 1601059.

It is an arithmetic number, because the mean of its divisors is an integer number (7204725).

Almost surely, 2^32020990 is an apocalyptic number.

32020990 is a deficient number, since it is larger than the sum of its proper divisors (25616810).

32020990 is a wasteful number, since it uses less digits than its factorization.

32020990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3202106.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 32020990 is about 5658.7092167737. The cubic root of 32020990 is about 317.5496109469.

The spelling of 32020990 in words is "thirty-two million, twenty thousand, nine hundred ninety".