2208274621 has 12 divisors (see below), whose sum is σ = 2571041088. Its totient is φ = 1891162392.

The previous prime is 2208274609. The next prime is 2208274631. The reversal of 2208274621 is 1264728022.

It is a de Polignac number, because none of the positive numbers 2^k-2208274621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2208274631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39180 + ... + 77146.

It is an arithmetic number, because the mean of its divisors is an integer number (214253424).

Almost surely, 2^2208274621 is an apocalyptic number.

It is an amenable number.

2208274621 is a deficient number, since it is larger than the sum of its proper divisors (362766467).

2208274621 is a wasteful number, since it uses less digits than its factorization.

2208274621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39168 (or 39161 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 2208274621 is about 46992.2825685240. The cubic root of 2208274621 is about 1302.2199978965.

The spelling of 2208274621 in words is "two billion, two hundred eight million, two hundred seventy-four thousand, six hundred twenty-one".