2942808 has 64 divisors (see below), whose sum is σ = 8190720. Its totient is φ = 873600.

The previous prime is 2942783. The next prime is 2942809. The reversal of 2942808 is 8082492.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2942809) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18666 + ... + 18822.

It is an arithmetic number, because the mean of its divisors is an integer number (127980).

2^2942808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2942808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4095360).

2942808 is an abundant number, since it is smaller than the sum of its proper divisors (5247912).

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

2942808 is a wasteful number, since it uses less digits than its factorization.

2942808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 2942808 is about 1715.4614539534. The cubic root of 2942808 is about 143.3025689637.

The spelling of 2942808 in words is "two million, nine hundred forty-two thousand, eight hundred eight".