2922840 has 96 divisors (see below), whose sum is σ = 9940320. Its totient is φ = 743424.

The previous prime is 2922833. The next prime is 2922841. The reversal of 2922840 is 482292.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2922841) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8104 + ... + 8456.

It is an arithmetic number, because the mean of its divisors is an integer number (103545).

2^2922840 is an apocalyptic number.

2922840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2922840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4970160).

2922840 is an abundant number, since it is smaller than the sum of its proper divisors (7017480).

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

2922840 is a wasteful number, since it uses less digits than its factorization.

2922840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 2922840 is about 1709.6315392505. The cubic root of 2922840 is about 142.9777134486.

The spelling of 2922840 in words is "two million, nine hundred twenty-two thousand, eight hundred forty".