2922780 has 48 divisors (see below), whose sum is σ = 9354240. Its totient is φ = 667968.

The previous prime is 2922779. The next prime is 2922797. The reversal of 2922780 is 872292.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3060 + ... + 3899.

It is an arithmetic number, because the mean of its divisors is an integer number (194880).

2^2922780 is an apocalyptic number.

2922780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2922780 is an abundant number, since it is smaller than the sum of its proper divisors (6431460).

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

2922780 is a wasteful number, since it uses less digits than its factorization.

2922780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6978 (or 6976 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 2922780 is about 1709.6139915197. The cubic root of 2922780 is about 142.9767350940.

The spelling of 2922780 in words is "two million, nine hundred twenty-two thousand, seven hundred eighty".