33139950 has 24 divisors (see below), whose sum is σ = 82187448. Its totient is φ = 8837280.

The previous prime is 33139949. The next prime is 33139969. The reversal of 33139950 is 5993133.

It is a Curzon number.

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 11 ways as a sum of consecutive naturals, for example, 110317 + ... + 110616.

It is an arithmetic number, because the mean of its divisors is an integer number (3424477).

Almost surely, 2^33139950 is an apocalyptic number.

33139950 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

33139950 is an abundant number, since it is smaller than the sum of its proper divisors (49047498).

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

33139950 is a wasteful number, since it uses less digits than its factorization.

33139950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220948 (or 220943 counting only the distinct ones).

The product of its (nonzero) digits is 10935, while the sum is 33.

The square root of 33139950 is about 5756.7308431088. The cubic root of 33139950 is about 321.2062222388.

The spelling of 33139950 in words is "thirty-three million, one hundred thirty-nine thousand, nine hundred fifty".