33072438 has 16 divisors (see below), whose sum is σ = 75594240. Its totient is φ = 9449256.

The previous prime is 33072419. The next prime is 33072449. The reversal of 33072438 is 83427033.

It is a Curzon number.

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, 393678 + ... + 393761.

It is an arithmetic number, because the mean of its divisors is an integer number (4724640).

Almost surely, 2^33072438 is an apocalyptic number.

33072438 is an abundant number, since it is smaller than the sum of its proper divisors (42521802).

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

33072438 is a wasteful number, since it uses less digits than its factorization.

33072438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 787451.

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 33072438 is about 5750.8641089840. The cubic root of 33072438 is about 320.9879557985.

The spelling of 33072438 in words is "thirty-three million, seventy-two thousand, four hundred thirty-eight".