33304344421 has 16 divisors (see below), whose sum is σ = 35053544448. Its totient is φ = 31598236800.

The previous prime is 33304344419. The next prime is 33304344449. The reversal of 33304344421 is 12444340333.

It is a cyclic number.

It is not a de Polignac number, because 33304344421 - 2¹ = 33304344419 is a prime.

It is a super-2 number, since 2×33304344421² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33344344421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2426440 + ... + 2440126.

It is an arithmetic number, because the mean of its divisors is an integer number (2190846528).

Almost surely, 2^33304344421 is an apocalyptic number.

33304344421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

33304344421 is a deficient number, since it is larger than the sum of its proper divisors (1749200027).

33304344421 is a wasteful number, since it uses less digits than its factorization.

33304344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15252.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 33304344421 its reverse (12444340333), we get a palindrome (45748684754).

The spelling of 33304344421 in words is "thirty-three billion, three hundred four million, three hundred forty-four thousand, four hundred twenty-one".