40612213 has 8 divisors (see below), whose sum is σ = 41653440. Its totient is φ = 39584160.

The previous prime is 40612211. The next prime is 40612217. The reversal of 40612213 is 31221604.

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 40612213 - 2¹ = 40612211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40612211) 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, 3106 + ... + 9532.

It is an arithmetic number, because the mean of its divisors is an integer number (5206680).

Almost surely, 2^40612213 is an apocalyptic number.

It is an amenable number.

40612213 is a deficient number, since it is larger than the sum of its proper divisors (1041227).

40612213 is an equidigital number, since it uses as much as digits as its factorization.

40612213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6587.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 40612213 is about 6372.7712182378. The cubic root of 40612213 is about 343.7311452799.

Adding to 40612213 its reverse (31221604), we get a palindrome (71833817).

The spelling of 40612213 in words is "forty million, six hundred twelve thousand, two hundred thirteen".