33381412 has 6 divisors (see below), whose sum is σ = 58417478. Its totient is φ = 16690704.

The previous prime is 33381401. The next prime is 33381427. The reversal of 33381412 is 21418333.

It can be written as a sum of positive squares in only one way, i.e., 17172736 + 16208676 = 4144^2 + 4026^2 .

It is a super-2 number, since 2×33381412² = 2228637334227488, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4172673 + ... + 4172680.

Almost surely, 2^33381412 is an apocalyptic number.

It is an amenable number.

33381412 is a deficient number, since it is larger than the sum of its proper divisors (25036066).

33381412 is a wasteful number, since it uses less digits than its factorization.

33381412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8345357 (or 8345355 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 33381412 is about 5777.6649262483. The cubic root of 33381412 is about 321.9844520096.

Adding to 33381412 its reverse (21418333), we get a palindrome (54799745).

The spelling of 33381412 in words is "thirty-three million, three hundred eighty-one thousand, four hundred twelve".