33420406 has 8 divisors (see below), whose sum is σ = 50234184. Its totient is φ = 16675680.

The previous prime is 33420391. The next prime is 33420407. The reversal of 33420406 is 60402433.

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

It is a super-2 number, since 2×33420406² = 2233847074409672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33420407) 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, 16035 + ... + 17998.

It is an arithmetic number, because the mean of its divisors is an integer number (6279273).

Almost surely, 2^33420406 is an apocalyptic number.

33420406 is a deficient number, since it is larger than the sum of its proper divisors (16813778).

33420406 is a wasteful number, since it uses less digits than its factorization.

33420406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34526.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 33420406 is about 5781.0384880227. The cubic root of 33420406 is about 322.1097770065.

Adding to 33420406 its reverse (60402433), we get a palindrome (93822839).

The spelling of 33420406 in words is "thirty-three million, four hundred twenty thousand, four hundred six".