33290988 has 24 divisors (see below), whose sum is σ = 77961408. Its totient is φ = 11056656.

The previous prime is 33290969. The next prime is 33291019. The reversal of 33290988 is 88909233.

It is a super-2 number, since 2×33290988² = 2216579764032288, which contains 22 as substring.

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, 1506 + ... + 8297.

It is an arithmetic number, because the mean of its divisors is an integer number (3248392).

Almost surely, 2^33290988 is an apocalyptic number.

It is an amenable number.

33290988 is an abundant number, since it is smaller than the sum of its proper divisors (44670420).

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

33290988 is a wasteful number, since it uses less digits than its factorization.

33290988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10093 (or 10091 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 33290988 is about 5769.8343130457. The cubic root of 33290988 is about 321.6934572202.

The spelling of 33290988 in words is "thirty-three million, two hundred ninety thousand, nine hundred eighty-eight".