33103972 has 24 divisors (see below), whose sum is σ = 63417312. Its totient is φ = 14995200.

The previous prime is 33103957. The next prime is 33103979. The reversal of 33103972 is 27930133.

It is a self number, because there is not a number n which added to its sum of digits gives 33103972.

It is not an unprimeable number, because it can be changed into a prime (33103979) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13428 + ... + 15700.

It is an arithmetic number, because the mean of its divisors is an integer number (2642388).

Almost surely, 2^33103972 is an apocalyptic number.

It is an amenable number.

33103972 is a deficient number, since it is larger than the sum of its proper divisors (30313340).

33103972 is a wasteful number, since it uses less digits than its factorization.

33103972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2619 (or 2617 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 28.

The square root of 33103972 is about 5753.6051306985. The cubic root of 33103972 is about 321.0899422204.

The spelling of 33103972 in words is "thirty-three million, one hundred three thousand, nine hundred seventy-two".