33420430 has 16 divisors (see below), whose sum is σ = 63323280. Its totient is φ = 12664512.

The previous prime is 33420407. The next prime is 33420451. The reversal of 33420430 is 3402433.

It is a super-2 number, since 2×33420430² = 2233850282769800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 33420398 and 33420407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87759 + ... + 88138.

It is an arithmetic number, because the mean of its divisors is an integer number (3957705).

Almost surely, 2^33420430 is an apocalyptic number.

33420430 is a deficient number, since it is larger than the sum of its proper divisors (29902850).

33420430 is a wasteful number, since it uses less digits than its factorization.

33420430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175923.

The product of its (nonzero) digits is 864, while the sum is 19.

The square root of 33420430 is about 5781.0405637740. The cubic root of 33420430 is about 322.1098541114.

Adding to 33420430 its reverse (3402433), we get a palindrome (36822863).

The spelling of 33420430 in words is "thirty-three million, four hundred twenty thousand, four hundred thirty".