33801985 has 16 divisors (see below), whose sum is σ = 47145600. Its totient is φ = 22784256.

The previous prime is 33801983. The next prime is 33802057. The reversal of 33801985 is 58910833.

It is a cyclic number.

It is not a de Polignac number, because 33801985 - 2¹ = 33801983 is a prime.

It is a super-2 number, since 2×33801985² = 2285148379880450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (33801983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6120 + ... + 10249.

It is an arithmetic number, because the mean of its divisors is an integer number (2946600).

Almost surely, 2^33801985 is an apocalyptic number.

33801985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33801985 is a deficient number, since it is larger than the sum of its proper divisors (13343615).

33801985 is a wasteful number, since it uses less digits than its factorization.

33801985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16440.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 33801985 is about 5813.9474541829. The cubic root of 33801985 is about 323.3310417759.

The spelling of 33801985 in words is "thirty-three million, eight hundred one thousand, nine hundred eighty-five".