2563926 has 16 divisors (see below), whose sum is σ = 5147328. Its totient is φ = 851400.

The previous prime is 2563921. The next prime is 2563927. The reversal of 2563926 is 6293652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1341 + ... + 2631.

It is an arithmetic number, because the mean of its divisors is an integer number (321708).

2^2563926 is an apocalyptic number.

2563926 is an abundant number, since it is smaller than the sum of its proper divisors (2583402).

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

2563926 is a wasteful number, since it uses less digits than its factorization.

2563926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1627.

The product of its digits is 19440, while the sum is 33.

The square root of 2563926 is about 1601.2264049784. The cubic root of 2563926 is about 136.8679709074.

The spelling of 2563926 in words is "two million, five hundred sixty-three thousand, nine hundred twenty-six".