33810438132 has 36 divisors (see below), whose sum is σ = 85520589700. Its totient is φ = 11262851712.

The previous prime is 33810438119. The next prime is 33810438139. The reversal of 33810438132 is 23183401833.

It can be written as a sum of positive squares in 2 ways, for example, as 11398551696 + 22411886436 = 106764^2 + 149706^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×33810438132² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33810438139) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 247393 + ... + 358920.

Almost surely, 2^33810438132 is an apocalyptic number.

It is an amenable number.

33810438132 is an abundant number, since it is smaller than the sum of its proper divisors (51710151568).

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

33810438132 is a wasteful number, since it uses less digits than its factorization.

33810438132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607872 (or 607867 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

Adding to 33810438132 its reverse (23183401833), we get a palindrome (56993839965).

The spelling of 33810438132 in words is "thirty-three billion, eight hundred ten million, four hundred thirty-eight thousand, one hundred thirty-two".