33505372 has 6 divisors (see below), whose sum is σ = 58634408. Its totient is φ = 16752684.

The previous prime is 33505363. The next prime is 33505393. The reversal of 33505372 is 27350533.

It is a happy number.

It is a super-2 number, since 2×33505372² = 2245219905716768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33505372.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4188168 + ... + 4188175.

Almost surely, 2^33505372 is an apocalyptic number.

It is an amenable number.

33505372 is a deficient number, since it is larger than the sum of its proper divisors (25129036).

33505372 is a wasteful number, since it uses less digits than its factorization.

33505372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8376347 (or 8376345 counting only the distinct ones).

The product of its (nonzero) digits is 9450, while the sum is 28.

The square root of 33505372 is about 5788.3825029105. The cubic root of 33505372 is about 322.3825167490.

The spelling of 33505372 in words is "thirty-three million, five hundred five thousand, three hundred seventy-two".