33401144420 has 24 divisors (see below), whose sum is σ = 80162746944. Its totient is φ = 11451820896.

The previous prime is 33401144407. The next prime is 33401144423. The reversal of 33401144420 is 2444110433.

It is a super-2 number, since 2×33401144420² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33401144420.

It is not an unprimeable number, because it can be changed into a prime (33401144423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119289662 + ... + 119289941.

It is an arithmetic number, because the mean of its divisors is an integer number (3340114456).

Almost surely, 2^33401144420 is an apocalyptic number.

It is an amenable number.

33401144420 is an abundant number, since it is smaller than the sum of its proper divisors (46761602524).

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

33401144420 is a wasteful number, since it uses less digits than its factorization.

33401144420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238579619 (or 238579617 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 33401144420 its reverse (2444110433), we get a palindrome (35845254853).

The spelling of 33401144420 in words is "thirty-three billion, four hundred one million, one hundred forty-four thousand, four hundred twenty".