40557229 has 8 divisors (see below), whose sum is σ = 42819840. Its totient is φ = 38307456.

The previous prime is 40557221. The next prime is 40557271. The reversal of 40557229 is 92275504.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40557229 - 2³ = 40557221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40557194 and 40557203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40557221) 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, 3684 + ... + 9730.

It is an arithmetic number, because the mean of its divisors is an integer number (5352480).

Almost surely, 2^40557229 is an apocalyptic number.

It is an amenable number.

40557229 is a deficient number, since it is larger than the sum of its proper divisors (2262611).

40557229 is a wasteful number, since it uses less digits than its factorization.

40557229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6419.

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 40557229 is about 6368.4557782872. The cubic root of 40557229 is about 343.5759518243.

The spelling of 40557229 in words is "forty million, five hundred fifty-seven thousand, two hundred twenty-nine".