2663438 has 4 divisors (see below), whose sum is σ = 3995160. Its totient is φ = 1331718.

The previous prime is 2663431. The next prime is 2663459. The reversal of 2663438 is 8343662.

It is a semiprime because it is the product of two primes.

It is a d-powerful number, because it can be written as 2¹⁹ + 6⁷ + 6⁸ + 3⁷ + 4⁴ + 3¹¹ + 8 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2663431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665858 + ... + 665861.

It is an arithmetic number, because the mean of its divisors is an integer number (998790).

2^2663438 is an apocalyptic number.

2663438 is a deficient number, since it is larger than the sum of its proper divisors (1331722).

2663438 is a wasteful number, since it uses less digits than its factorization.

2663438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1331721.

The product of its digits is 20736, while the sum is 32.

The square root of 2663438 is about 1632.0042892100. The cubic root of 2663438 is about 138.6162664572.

The spelling of 2663438 in words is "two million, six hundred sixty-three thousand, four hundred thirty-eight".