33616990 has 32 divisors (see below), whose sum is σ = 69898464. Its totient is φ = 11504640.

The previous prime is 33616987. The next prime is 33617021. The reversal of 33616990 is 9961633.

It is a super-2 number, since 2×33616990² = 2260204033320200, 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 (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7119 + ... + 10858.

It is an arithmetic number, because the mean of its divisors is an integer number (2184327).

Almost surely, 2^33616990 is an apocalyptic number.

33616990 is an abundant number, since it is smaller than the sum of its proper divisors (36281474).

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

33616990 is a wasteful number, since it uses less digits than its factorization.

33616990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18012.

The product of its (nonzero) digits is 26244, while the sum is 37.

The square root of 33616990 is about 5798.0160399916. The cubic root of 33616990 is about 322.7401092320.

The spelling of 33616990 in words is "thirty-three million, six hundred sixteen thousand, nine hundred ninety".