33153972 has 24 divisors (see below), whose sum is σ = 78421056. Its totient is φ = 10899648.

The previous prime is 33153959. The next prime is 33153983. The reversal of 33153972 is 27935133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18048 + ... + 19799.

It is an arithmetic number, because the mean of its divisors is an integer number (3267544).

Almost surely, 2^33153972 is an apocalyptic number.

It is an amenable number.

33153972 is an abundant number, since it is smaller than the sum of its proper divisors (45267084).

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

33153972 is a wasteful number, since it uses less digits than its factorization.

33153972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37927 (or 37925 counting only the distinct ones).

The product of its digits is 17010, while the sum is 33.

The square root of 33153972 is about 5757.9485930321. The cubic root of 33153972 is about 321.2515182091.

The spelling of 33153972 in words is "thirty-three million, one hundred fifty-three thousand, nine hundred seventy-two".