33530413 has 8 divisors (see below), whose sum is σ = 38623232. Its totient is φ = 28513296.

The previous prime is 33530407. The next prime is 33530447. The reversal of 33530413 is 31403533.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 33530413 - 2⁹ = 33529901 is a prime.

It is a super-2 number, since 2×33530413² = 2248577191901138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33530713) 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, 17970 + ... + 19747.

It is an arithmetic number, because the mean of its divisors is an integer number (4827904).

Almost surely, 2^33530413 is an apocalyptic number.

It is an amenable number.

33530413 is a deficient number, since it is larger than the sum of its proper divisors (5092819).

33530413 is a wasteful number, since it uses less digits than its factorization.

33530413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37851.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 33530413 is about 5790.5451384131. The cubic root of 33530413 is about 322.4628100456.

Adding to 33530413 its reverse (31403533), we get a palindrome (64933946).

The spelling of 33530413 in words is "thirty-three million, five hundred thirty thousand, four hundred thirteen".