2661043 has 12 divisors (see below), whose sum is σ = 3377592. Its totient is φ = 2073120.

The previous prime is 2661013. The next prime is 2661067. The reversal of 2661043 is 3401662.

2661043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2661043 - 2¹⁷ = 2529971 is a prime.

It is a super-2 number, since 2×2661043² = 14162299695698, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2661013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1930 + ... + 3007.

It is an arithmetic number, because the mean of its divisors is an integer number (281466).

2^2661043 is an apocalyptic number.

2661043 is a deficient number, since it is larger than the sum of its proper divisors (716549).

2661043 is a wasteful number, since it uses less digits than its factorization.

2661043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962 (or 4955 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 2661043 is about 1631.2703638576. The cubic root of 2661043 is about 138.5747054476.

The spelling of 2661043 in words is "two million, six hundred sixty-one thousand, forty-three".