33705138 has 32 divisors (see below), whose sum is σ = 69564096. Its totient is φ = 10881728.

The previous prime is 33705127. The next prime is 33705167. The reversal of 33705138 is 83150733.

It is a super-2 number, since 2×33705138² = 2272072655198088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25756 + ... + 27032.

It is an arithmetic number, because the mean of its divisors is an integer number (2173878).

Almost surely, 2^33705138 is an apocalyptic number.

33705138 is an abundant number, since it is smaller than the sum of its proper divisors (35858958).

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

33705138 is a wasteful number, since it uses less digits than its factorization.

33705138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1418.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 33705138 is about 5805.6126291719. The cubic root of 33705138 is about 323.0219514966.

The spelling of 33705138 in words is "thirty-three million, seven hundred five thousand, one hundred thirty-eight".