33413445 has 64 divisors (see below), whose sum is σ = 65049600. Its totient is φ = 16174080.

The previous prime is 33413441. The next prime is 33413461. The reversal of 33413445 is 54431433.

It is not a de Polignac number, because 33413445 - 2² = 33413441 is a prime.

It is a super-2 number, since 2×33413445² = 2232916613536050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33413441) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 138525 + ... + 138765.

It is an arithmetic number, because the mean of its divisors is an integer number (1016400).

Almost surely, 2^33413445 is an apocalyptic number.

It is an amenable number.

33413445 is a deficient number, since it is larger than the sum of its proper divisors (31636155).

33413445 is a wasteful number, since it uses less digits than its factorization.

33413445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 341 counting only the distinct ones).

The product of its digits is 8640, while the sum is 27.

The square root of 33413445 is about 5780.4364022105. The cubic root of 33413445 is about 322.0874118099.

Adding to 33413445 its reverse (54431433), we get a palindrome (87844878).

It can be divided in two parts, 3341 and 3445, that added together give a triangular number (6786 = T₁₁₆).

The spelling of 33413445 in words is "thirty-three million, four hundred thirteen thousand, four hundred forty-five".