33402984 has 32 divisors (see below), whose sum is σ = 84757920. Its totient is φ = 10967616.

The previous prime is 33402961. The next prime is 33402989. The reversal of 33402984 is 48920433.

It is a super-2 number, since 2×33402984² = 2231518680208512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33402989) 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, 8779 + ... + 11994.

It is an arithmetic number, because the mean of its divisors is an integer number (2648685).

Almost surely, 2^33402984 is an apocalyptic number.

It is an amenable number.

33402984 is an abundant number, since it is smaller than the sum of its proper divisors (51354936).

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

33402984 is a wasteful number, since it uses less digits than its factorization.

33402984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20849 (or 20845 counting only the distinct ones).

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

The square root of 33402984 is about 5779.5314688995. The cubic root of 33402984 is about 322.0537955206.

The spelling of 33402984 in words is "thirty-three million, four hundred two thousand, nine hundred eighty-four".