33540233420 has 24 divisors (see below), whose sum is σ = 70883124144. Its totient is φ = 13330639296.

The previous prime is 33540233411. The next prime is 33540233459. The reversal of 33540233420 is 2433204533.

It is a super-2 number, since 2×33540233420² (a number of 22 digits) contains 22 as substring.

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, 5337662 + ... + 5343941.

It is an arithmetic number, because the mean of its divisors is an integer number (2953463506).

Almost surely, 2^33540233420 is an apocalyptic number.

It is an amenable number.

33540233420 is an abundant number, since it is smaller than the sum of its proper divisors (37342890724).

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

33540233420 is a wasteful number, since it uses less digits than its factorization.

33540233420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10681769 (or 10681767 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 29.

Adding to 33540233420 its reverse (2433204533), we get a palindrome (35973437953).

The spelling of 33540233420 in words is "thirty-three billion, five hundred forty million, two hundred thirty-three thousand, four hundred twenty".