40005622 has 8 divisors (see below), whose sum is σ = 60071616. Its totient is φ = 19981752.

The previous prime is 40005611. The next prime is 40005643. The reversal of 40005622 is 22650004.

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

It is a self number, because there is not a number n which added to its sum of digits gives 40005622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8038 + ... + 12025.

It is an arithmetic number, because the mean of its divisors is an integer number (7508952).

Almost surely, 2^40005622 is an apocalyptic number.

40005622 is a deficient number, since it is larger than the sum of its proper divisors (20065994).

40005622 is a wasteful number, since it uses less digits than its factorization.

40005622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21062.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 40005622 is about 6324.9997628458. Note that the first 3 decimals coincide. The cubic root of 40005622 is about 342.0112110594.

Adding to 40005622 its reverse (22650004), we get a palindrome (62655626).

The spelling of 40005622 in words is "forty million, five thousand, six hundred twenty-two".