33121416 has 32 divisors (see below), whose sum is σ = 83172960. Its totient is φ = 10991232.

The previous prime is 33121411. The next prime is 33121441. The reversal of 33121416 is 61412133.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 33121392 and 33121401.

It is not an unprimeable number, because it can be changed into a prime (33121411) 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, 2631 + ... + 8553.

It is an arithmetic number, because the mean of its divisors is an integer number (2599155).

Almost surely, 2^33121416 is an apocalyptic number.

It is an amenable number.

33121416 is an abundant number, since it is smaller than the sum of its proper divisors (50051544).

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

33121416 is a wasteful number, since it uses less digits than its factorization.

33121416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6165 (or 6161 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 33121416 is about 5755.1208501647. The cubic root of 33121416 is about 321.1463313189.

Adding to 33121416 its reverse (61412133), we get a palindrome (94533549).

The spelling of 33121416 in words is "thirty-three million, one hundred twenty-one thousand, four hundred sixteen".