32978022 has 64 divisors (see below), whose sum is σ = 84284928. Its totient is φ = 8352000.

The previous prime is 32977999. The next prime is 32978027. The reversal of 32978022 is 22087923.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32978027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18072 + ... + 19812.

It is an arithmetic number, because the mean of its divisors is an integer number (1316952).

Almost surely, 2^32978022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32978022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42142464).

32978022 is an abundant number, since it is smaller than the sum of its proper divisors (51306906).

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

32978022 is a wasteful number, since it uses less digits than its factorization.

32978022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 32978022 is about 5742.6493885662. The cubic root of 32978022 is about 320.6822099236.

The spelling of 32978022 in words is "thirty-two million, nine hundred seventy-eight thousand, twenty-two".