2855490 has 64 divisors (see below), whose sum is σ = 7931520. Its totient is φ = 650240.

The previous prime is 2855483. The next prime is 2855497. The reversal of 2855490 is 945582.

It is an interprime number because it is at equal distance from previous prime (2855483) and next prime (2855497).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (2855497) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5356 + ... + 5864.

It is an arithmetic number, because the mean of its divisors is an integer number (123930).

2^2855490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2855490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3965760).

2855490 is an abundant number, since it is smaller than the sum of its proper divisors (5076030).

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

2855490 is a wasteful number, since it uses less digits than its factorization.

2855490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 2855490 is about 1689.8195169899. The cubic root of 2855490 is about 141.8709731888.

It can be divided in two parts, 285 and 5490, that added together give a palindrome (5775).

The spelling of 2855490 in words is "two million, eight hundred fifty-five thousand, four hundred ninety".