2663542 has 12 divisors (see below), whose sum is σ = 4647780. Its totient is φ = 1141476.

The previous prime is 2663539. The next prime is 2663567. The reversal of 2663542 is 2453662.

It is a happy number.

It is an Ulam number.

It is a d-powerful number, because it can be written as 2³ + 6³ + 6⁶ + 3¹² + 5⁹ + 4⁵ + 2¹⁷ .

It is a self number, because there is not a number n which added to its sum of digits gives 2663542.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13492 + ... + 13687.

It is an arithmetic number, because the mean of its divisors is an integer number (387315).

2^2663542 is an apocalyptic number.

2663542 is a deficient number, since it is larger than the sum of its proper divisors (1984238).

2663542 is a wasteful number, since it uses less digits than its factorization.

2663542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27195 (or 27188 counting only the distinct ones).

The product of its digits is 8640, while the sum is 28.

The square root of 2663542 is about 1632.0361515604. The cubic root of 2663542 is about 138.6180706296.

The spelling of 2663542 in words is "two million, six hundred sixty-three thousand, five hundred forty-two".