2955816 has 48 divisors (see below), whose sum is σ = 8148660. Its totient is φ = 967680.

The previous prime is 2955803. The next prime is 2955817. The reversal of 2955816 is 6185592.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2528100 + 427716 = 1590^2 + 654^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (2955817) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4056 + ... + 4728.

2^2955816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2955816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4074330).

2955816 is an abundant number, since it is smaller than the sum of its proper divisors (5192844).

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

2955816 is a wasteful number, since it uses less digits than its factorization.

2955816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 739 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 2955816 is about 1719.2486731128. The cubic root of 2955816 is about 143.5134038720.

The spelling of 2955816 in words is "two million, nine hundred fifty-five thousand, eight hundred sixteen".