33440033640 has 64 divisors (see below), whose sum is σ = 108037036800. Its totient is φ = 8231392512.

The previous prime is 33440033581. The next prime is 33440033659. The reversal of 33440033640 is 4633004433.

It is a super-3 number, since 3×33440033640³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is a junction number, because it is equal to n+sod(n) for n = 33440033598 and 33440033607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10716400 + ... + 10719519.

It is an arithmetic number, because the mean of its divisors is an integer number (1688078700).

Almost surely, 2^33440033640 is an apocalyptic number.

33440033640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

33440033640 is an abundant number, since it is smaller than the sum of its proper divisors (74597003160).

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

33440033640 is a wasteful number, since it uses less digits than its factorization.

33440033640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21435946 (or 21435942 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 30.

The spelling of 33440033640 in words is "thirty-three billion, four hundred forty million, thirty-three thousand, six hundred forty".