33444121 has 4 divisors (see below), whose sum is σ = 33587892. Its totient is φ = 33300352.

The previous prime is 33444107. The next prime is 33444157. The reversal of 33444121 is 12144433.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5934096 + 27510025 = 2436^2 + 5245^2 .

It is a cyclic number.

It is not a de Polignac number, because 33444121 - 2¹³ = 33435929 is a prime.

It is a super-2 number, since 2×33444121² = 2237018458925282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33444092 and 33444101.

It is not an unprimeable number, because it can be changed into a prime (33444421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71536 + ... + 72001.

It is an arithmetic number, because the mean of its divisors is an integer number (8396973).

Almost surely, 2^33444121 is an apocalyptic number.

It is an amenable number.

33444121 is a deficient number, since it is larger than the sum of its proper divisors (143771).

33444121 is a wasteful number, since it uses less digits than its factorization.

33444121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143770.

The product of its digits is 1152, while the sum is 22.

The square root of 33444121 is about 5783.0892263564. The cubic root of 33444121 is about 322.1859483058.

Adding to 33444121 its reverse (12144433), we get a palindrome (45588554).

The spelling of 33444121 in words is "thirty-three million, four hundred forty-four thousand, one hundred twenty-one".