33412131440 has 40 divisors (see below), whose sum is σ = 77849637840. Its totient is φ = 13336219136.

The previous prime is 33412131377. The next prime is 33412131479. The reversal of 33412131440 is 4413121433.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×33412131440² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409805 + ... + 484524.

It is an arithmetic number, because the mean of its divisors is an integer number (1946240946).

Almost surely, 2^33412131440 is an apocalyptic number.

It is an amenable number.

33412131440 is an abundant number, since it is smaller than the sum of its proper divisors (44437506400).

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

33412131440 is a wasteful number, since it uses less digits than its factorization.

33412131440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894809 (or 894803 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 33412131440 its reverse (4413121433), we get a palindrome (37825252873).

The spelling of 33412131440 in words is "thirty-three billion, four hundred twelve million, one hundred thirty-one thousand, four hundred forty".