40022212 has 12 divisors (see below), whose sum is σ = 70083216. Its totient is φ = 19998440.

The previous prime is 40022153. The next prime is 40022219. The reversal of 40022212 is 21222004.

It is a junction number, because it is equal to n+sod(n) for n = 40022192 and 40022201.

It is not an unprimeable number, because it can be changed into a prime (40022219) 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, 10383 + ... + 13705.

It is an arithmetic number, because the mean of its divisors is an integer number (5840268).

Almost surely, 2^40022212 is an apocalyptic number.

It is an amenable number.

40022212 is a deficient number, since it is larger than the sum of its proper divisors (30061004).

40022212 is a wasteful number, since it uses less digits than its factorization.

40022212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6338 (or 6336 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 40022212 is about 6326.3110894106. The cubic root of 40022212 is about 342.0584809311.

Adding to 40022212 its reverse (21222004), we get a palindrome (61244216).

The spelling of 40022212 in words is "forty million, twenty-two thousand, two hundred twelve".