33481404 has 48 divisors (see below), whose sum is σ = 94698240. Its totient is φ = 10145520.

The previous prime is 33481397. The next prime is 33481423. The reversal of 33481404 is 40418433.

It is a super-2 number, since 2×33481404² = 2242008827622432, 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 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 15 ways as a sum of consecutive naturals, for example, 12904 + ... + 15279.

It is an arithmetic number, because the mean of its divisors is an integer number (1972880).

Almost surely, 2^33481404 is an apocalyptic number.

It is an amenable number.

33481404 is an abundant number, since it is smaller than the sum of its proper divisors (61216836).

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

33481404 is a wasteful number, since it uses less digits than its factorization.

33481404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28207 (or 28199 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 33481404 is about 5786.3117786721. The cubic root of 33481404 is about 322.3056265182.

Adding to 33481404 its reverse (40418433), we get a palindrome (73899837).

The spelling of 33481404 in words is "thirty-three million, four hundred eighty-one thousand, four hundred four".