33423640445 has 16 divisors (see below), whose sum is σ = 43283842560. Its totient is φ = 24630521664.

The previous prime is 33423640399. The next prime is 33423640447. The reversal of 33423640445 is 54404632433.

It is a cyclic number.

It is not a de Polignac number, because 33423640445 - 2³⁴ = 16243771261 is a prime.

It is a super-2 number, since 2×33423640445² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 33423640399 and 33423640408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33423640447) by changing a digit.

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, 505619 + ... + 567888.

It is an arithmetic number, because the mean of its divisors is an integer number (2705240160).

Almost surely, 2^33423640445 is an apocalyptic number.

It is an amenable number.

33423640445 is a deficient number, since it is larger than the sum of its proper divisors (9860202115).

33423640445 is a wasteful number, since it uses less digits than its factorization.

33423640445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074004.

The product of its (nonzero) digits is 414720, while the sum is 38.

The spelling of 33423640445 in words is "thirty-three billion, four hundred twenty-three million, six hundred forty thousand, four hundred forty-five".