33145038 has 20 divisors (see below), whose sum is σ = 74269800. Its totient is φ = 11048292.

The previous prime is 33145037. The next prime is 33145051. The reversal of 33145038 is 83054133.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33145031) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 102138 + ... + 102461.

It is an arithmetic number, because the mean of its divisors is an integer number (3713490).

Almost surely, 2^33145038 is an apocalyptic number.

33145038 is an abundant number, since it is smaller than the sum of its proper divisors (41124762).

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

33145038 is a wasteful number, since it uses less digits than its factorization.

33145038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204613 (or 204604 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 33145038 is about 5757.1727436303. The cubic root of 33145038 is about 321.2226597373. Note that the first 3 decimals are identical.

It can be divided in two parts, 331 and 45038, that added together give a square (45369 = 213²).

The spelling of 33145038 in words is "thirty-three million, one hundred forty-five thousand, thirty-eight".