40569933 has 4 divisors (see below), whose sum is σ = 54093248. Its totient is φ = 27046620.

The previous prime is 40569929. The next prime is 40569943. The reversal of 40569933 is 33996504.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 40569933 - 2² = 40569929 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40569891 and 40569900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40569913) 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, 6761653 + ... + 6761658.

It is an arithmetic number, because the mean of its divisors is an integer number (13523312).

Almost surely, 2^40569933 is an apocalyptic number.

It is an amenable number.

40569933 is a deficient number, since it is larger than the sum of its proper divisors (13523315).

40569933 is a wasteful number, since it uses less digits than its factorization.

40569933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13523314.

The product of its (nonzero) digits is 87480, while the sum is 39.

The square root of 40569933 is about 6369.4531162416. The cubic root of 40569933 is about 343.6118215763.

The spelling of 40569933 in words is "forty million, five hundred sixty-nine thousand, nine hundred thirty-three".