33020232140 has 24 divisors (see below), whose sum is σ = 79248557472. Its totient is φ = 11321222400.

The previous prime is 33020232139. The next prime is 33020232143. The reversal of 33020232140 is 4123202033.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (33020232143) 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, 117929261 + ... + 117929540.

It is an arithmetic number, because the mean of its divisors is an integer number (3302023228).

Almost surely, 2^33020232140 is an apocalyptic number.

It is an amenable number.

33020232140 is an abundant number, since it is smaller than the sum of its proper divisors (46228325332).

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

33020232140 is a wasteful number, since it uses less digits than its factorization.

33020232140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235858817 (or 235858815 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 33020232140 its reverse (4123202033), we get a palindrome (37143434173).

The spelling of 33020232140 in words is "thirty-three billion, twenty million, two hundred thirty-two thousand, one hundred forty".