2870940 has 48 divisors (see below), whose sum is σ = 8184960. Its totient is φ = 751680.

The previous prime is 2870911. The next prime is 2870953. The reversal of 2870940 is 490782.

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

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 2870898 and 2870907.

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 15 ways as a sum of consecutive naturals, for example, 3135 + ... + 3945.

It is an arithmetic number, because the mean of its divisors is an integer number (170520).

2^2870940 is an apocalyptic number.

2870940 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 2870940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4092480).

2870940 is an abundant number, since it is smaller than the sum of its proper divisors (5314020).

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

2870940 is a wasteful number, since it uses less digits than its factorization.

2870940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882 (or 880 counting only the distinct ones).

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

The square root of 2870940 is about 1694.3848441249. The cubic root of 2870940 is about 142.1263835477.

The spelling of 2870940 in words is "two million, eight hundred seventy thousand, nine hundred forty".