33013438 has 16 divisors (see below), whose sum is σ = 50613984. Its totient is φ = 16145920.

The previous prime is 33013433. The next prime is 33013501. The reversal of 33013438 is 83431033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33013433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18606 + ... + 20302.

It is an arithmetic number, because the mean of its divisors is an integer number (3163374).

Almost surely, 2^33013438 is an apocalyptic number.

33013438 is a deficient number, since it is larger than the sum of its proper divisors (17600546).

33013438 is a wasteful number, since it uses less digits than its factorization.

33013438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 33013438 is about 5745.7321552610. The cubic root of 33013438 is about 320.7969653198.

The spelling of 33013438 in words is "thirty-three million, thirteen thousand, four hundred thirty-eight".