2661956 has 24 divisors (see below), whose sum is σ = 5140800. Its totient is φ = 1196000.

The previous prime is 2661949. The next prime is 2661959. The reversal of 2661956 is 6591662.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2661959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4145 + ... + 4743.

It is an arithmetic number, because the mean of its divisors is an integer number (214200).

2^2661956 is an apocalyptic number.

It is an amenable number.

2661956 is a deficient number, since it is larger than the sum of its proper divisors (2478844).

2661956 is a wasteful number, since it uses less digits than its factorization.

2661956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 715 (or 713 counting only the distinct ones).

The product of its digits is 19440, while the sum is 35.

The square root of 2661956 is about 1631.5501831081. The cubic root of 2661956 is about 138.5905518957.

It can be divided in two parts, 266 and 1956, that added together give a palindrome (2222).

The spelling of 2661956 in words is "two million, six hundred sixty-one thousand, nine hundred fifty-six".