2668542 has 16 divisors (see below), whose sum is σ = 5509632. Its totient is φ = 860760.

The previous prime is 2668469. The next prime is 2668553. The reversal of 2668542 is 2458662.

It is a super-2 number, since 2×2668542² = 14242232811528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6988 + ... + 7359.

It is an arithmetic number, because the mean of its divisors is an integer number (344352).

2^2668542 is an apocalyptic number.

2668542 is an abundant number, since it is smaller than the sum of its proper divisors (2841090).

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

2668542 is a wasteful number, since it uses less digits than its factorization.

2668542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14383.

The product of its digits is 23040, while the sum is 33.

The square root of 2668542 is about 1633.5672621597. The cubic root of 2668542 is about 138.7047543406.

The spelling of 2668542 in words is "two million, six hundred sixty-eight thousand, five hundred forty-two".