2206540312 has 16 divisors (see below), whose sum is σ = 4205088000. Its totient is φ = 1085183520.

The previous prime is 2206540277. The next prime is 2206540333. The reversal of 2206540312 is 2130456022.

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, 2260312 + ... + 2261287.

It is an arithmetic number, because the mean of its divisors is an integer number (262818000).

Almost surely, 2^2206540312 is an apocalyptic number.

It is an amenable number.

2206540312 is a deficient number, since it is larger than the sum of its proper divisors (1998547688).

2206540312 is a wasteful number, since it uses less digits than its factorization.

2206540312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4521666 (or 4521662 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2206540312 is about 46973.8258182150. The cubic root of 2206540312 is about 1301.8790011537.

Adding to 2206540312 its reverse (2130456022), we get a palindrome (4336996334).

The spelling of 2206540312 in words is "two billion, two hundred six million, five hundred forty thousand, three hundred twelve".