2784980 has 24 divisors (see below), whose sum is σ = 6380640. Its totient is φ = 1012640.

The previous prime is 2784979. The next prime is 2784997. The reversal of 2784980 is 894872.

It is a super-2 number, since 2×2784980² = 15512227200800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6110 + ... + 6549.

It is an arithmetic number, because the mean of its divisors is an integer number (265860).

2^2784980 is an apocalyptic number.

2784980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2784980 is an abundant number, since it is smaller than the sum of its proper divisors (3595660).

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

2784980 is a wasteful number, since it uses less digits than its factorization.

2784980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12679 (or 12677 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 2784980 is about 1668.8259346019. The cubic root of 2784980 is about 140.6934978230.

The spelling of 2784980 in words is "two million, seven hundred eighty-four thousand, nine hundred eighty".