33906335140 has 12 divisors (see below), whose sum is σ = 71203303836. Its totient is φ = 13562534048.

The previous prime is 33906335137. The next prime is 33906335143. The reversal of 33906335140 is 4153360933.

It is an interprime number because it is at equal distance from previous prime (33906335137) and next prime (33906335143).

It can be written as a sum of positive squares in 2 ways, for example, as 4223180196 + 29683154944 = 64986^2 + 172288^2 .

It is a super-2 number, since 2×33906335140² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33906335140.

It is not an unprimeable number, because it can be changed into a prime (33906335143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847658359 + ... + 847658398.

It is an arithmetic number, because the mean of its divisors is an integer number (5933608653).

Almost surely, 2^33906335140 is an apocalyptic number.

It is an amenable number.

33906335140 is an abundant number, since it is smaller than the sum of its proper divisors (37296968696).

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

33906335140 is a wasteful number, since it uses less digits than its factorization.

33906335140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1695316766 (or 1695316764 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 37.

The spelling of 33906335140 in words is "thirty-three billion, nine hundred six million, three hundred thirty-five thousand, one hundred forty".