2563738 has 8 divisors (see below), whose sum is σ = 3863232. Its totient is φ = 1275996.

The previous prime is 2563733. The next prime is 2563747. The reversal of 2563738 is 8373652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2563733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2370 + ... + 3277.

It is an arithmetic number, because the mean of its divisors is an integer number (482904).

2^2563738 is an apocalyptic number.

2563738 is a deficient number, since it is larger than the sum of its proper divisors (1299494).

2563738 is a wasteful number, since it uses less digits than its factorization.

2563738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5876.

The product of its digits is 30240, while the sum is 34.

The square root of 2563738 is about 1601.1676988998. The cubic root of 2563738 is about 136.8646255420.

The spelling of 2563738 in words is "two million, five hundred sixty-three thousand, seven hundred thirty-eight".