32273920 has 80 divisors (see below), whose sum is σ = 88485408. Its totient is φ = 11059200.

The previous prime is 32273911. The next prime is 32273933. The reversal of 32273920 is 2937223.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 17020 + ... + 18820.

Almost surely, 2^32273920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44242704).

32273920 is an abundant number, since it is smaller than the sum of its proper divisors (56211488).

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

32273920 is an equidigital number, since it uses as much as digits as its factorization.

32273920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1831 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

The square root of 32273920 is about 5681.0139939979. The cubic root of 32273920 is about 318.3835147143.

The spelling of 32273920 in words is "thirty-two million, two hundred seventy-three thousand, nine hundred twenty".