40320212 has 12 divisors (see below), whose sum is σ = 72836736. Its totient is φ = 19509720.

The previous prime is 40320211. The next prime is 40320221. The reversal of 40320212 is 21202304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40320211) 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, 162458 + ... + 162705.

It is an arithmetic number, because the mean of its divisors is an integer number (6069728).

Almost surely, 2^40320212 is an apocalyptic number.

It is an amenable number.

40320212 is a deficient number, since it is larger than the sum of its proper divisors (32516524).

40320212 is a wasteful number, since it uses less digits than its factorization.

40320212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325198 (or 325196 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40320212 is about 6349.8198399640. The cubic root of 40320212 is about 342.9053562820.

Adding to 40320212 its reverse (21202304), we get a palindrome (61522516).

The spelling of 40320212 in words is "forty million, three hundred twenty thousand, two hundred twelve".