2821908 has 12 divisors (see below), whose sum is σ = 6584480. Its totient is φ = 940632.

The previous prime is 2821877. The next prime is 2821909. The reversal of 2821908 is 8091282.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821909) 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, 117568 + ... + 117591.

2^2821908 is an apocalyptic number.

It is an amenable number.

2821908 is an abundant number, since it is smaller than the sum of its proper divisors (3762572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2821908 is a wasteful number, since it uses less digits than its factorization.

2821908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235166 (or 235164 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 2821908 is about 1679.8535650467. The cubic root of 2821908 is about 141.3126205753.

The spelling of 2821908 in words is "two million, eight hundred twenty-one thousand, nine hundred eight".