33929945 has 32 divisors (see below), whose sum is σ = 49116672. Its totient is φ = 21998592.

The previous prime is 33929941. The next prime is 33929957. The reversal of 33929945 is 54992933.

33929945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 33929945 - 2² = 33929941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33929896 and 33929905.

It is not an unprimeable number, because it can be changed into a prime (33929941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90779 + ... + 91151.

It is an arithmetic number, because the mean of its divisors is an integer number (1534896).

Almost surely, 2^33929945 is an apocalyptic number.

33929945 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33929945 is a deficient number, since it is larger than the sum of its proper divisors (15186727).

33929945 is a wasteful number, since it uses less digits than its factorization.

33929945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521.

The product of its digits is 262440, while the sum is 44.

The square root of 33929945 is about 5824.9416306088. The cubic root of 33929945 is about 323.7385261508.

The spelling of 33929945 in words is "thirty-three million, nine hundred twenty-nine thousand, nine hundred forty-five".