2872940 has 24 divisors (see below), whose sum is σ = 6895392. Its totient is φ = 984960.

The previous prime is 2872937. The next prime is 2872967. The reversal of 2872940 is 492782.

It is a junction number, because it is equal to n+sod(n) for n = 2872897 and 2872906.

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, 10121 + ... + 10400.

It is an arithmetic number, because the mean of its divisors is an integer number (287308).

2^2872940 is an apocalyptic number.

2872940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2872940 is an abundant number, since it is smaller than the sum of its proper divisors (4022452).

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

2872940 is a wasteful number, since it uses less digits than its factorization.

2872940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20537 (or 20535 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 2872940 is about 1694.9749260682. The cubic root of 2872940 is about 142.1593793360.

The spelling of 2872940 in words is "two million, eight hundred seventy-two thousand, nine hundred forty".