33340033920 has 64 divisors (see below), whose sum is σ = 106271364240. Its totient is φ = 8890675200.

The previous prime is 33340033897. The next prime is 33340033927. The reversal of 33340033920 is 2933004333.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×33340033920² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33340033927) 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, 8680381 + ... + 8684220.

Almost surely, 2^33340033920 is an apocalyptic number.

33340033920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33340033920 is an abundant number, since it is smaller than the sum of its proper divisors (72931330320).

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

33340033920 is a wasteful number, since it uses less digits than its factorization.

33340033920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17364623 (or 17364611 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 30.

The spelling of 33340033920 in words is "thirty-three billion, three hundred forty million, thirty-three thousand, nine hundred twenty".