33420894 has 16 divisors (see below), whose sum is σ = 71983632. Its totient is φ = 10283328.

The previous prime is 33420889. The next prime is 33420913. The reversal of 33420894 is 49802433.

It is a super-2 number, since 2×33420894² = 2233912311518472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214159 + ... + 214314.

It is an arithmetic number, because the mean of its divisors is an integer number (4498977).

Almost surely, 2^33420894 is an apocalyptic number.

33420894 is an abundant number, since it is smaller than the sum of its proper divisors (38562738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

33420894 is a wasteful number, since it uses less digits than its factorization.

33420894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428491.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 33420894 is about 5781.0806948182. The cubic root of 33420894 is about 322.1113447992. Note that the first 3 decimals are identical.

The spelling of 33420894 in words is "thirty-three million, four hundred twenty thousand, eight hundred ninety-four".