33022140 has 24 divisors (see below), whose sum is σ = 92462160. Its totient is φ = 8805888.

The previous prime is 33022117. The next prime is 33022147. The reversal of 33022140 is 4122033.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33022147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 275125 + ... + 275244.

It is an arithmetic number, because the mean of its divisors is an integer number (3852590).

Almost surely, 2^33022140 is an apocalyptic number.

33022140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33022140 is an abundant number, since it is smaller than the sum of its proper divisors (59440020).

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

33022140 is a wasteful number, since it uses less digits than its factorization.

33022140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550381 (or 550379 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 33022140 is about 5746.4893630807. The cubic root of 33022140 is about 320.8251490950.

Adding to 33022140 its reverse (4122033), we get a palindrome (37144173).

The spelling of 33022140 in words is "thirty-three million, twenty-two thousand, one hundred forty".