2854840 has 32 divisors (see below), whose sum is σ = 6480000. Its totient is φ = 1131904.

The previous prime is 2854837. The next prime is 2854843. The reversal of 2854840 is 484582.

It is an interprime number because it is at equal distance from previous prime (2854837) and next prime (2854843).

It is a super-2 number, since 2×2854840² = 16300222851200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2854843) by changing a digit.

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, 5721 + ... + 6199.

It is an arithmetic number, because the mean of its divisors is an integer number (202500).

2^2854840 is an apocalyptic number.

2854840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2854840 is an abundant number, since it is smaller than the sum of its proper divisors (3625160).

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

2854840 is a wasteful number, since it uses less digits than its factorization.

2854840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 2854840 is about 1689.6271778117. The cubic root of 2854840 is about 141.8602075956.

The spelling of 2854840 in words is "two million, eight hundred fifty-four thousand, eight hundred forty".