2563768 has 8 divisors (see below), whose sum is σ = 4807080. Its totient is φ = 1281880.

The previous prime is 2563763. The next prime is 2563777. The reversal of 2563768 is 8673652.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563763) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160228 + ... + 160243.

It is an arithmetic number, because the mean of its divisors is an integer number (600885).

2^2563768 is an apocalyptic number.

It is an amenable number.

2563768 is a deficient number, since it is larger than the sum of its proper divisors (2243312).

2563768 is a wasteful number, since it uses less digits than its factorization.

2563768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320477 (or 320473 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 2563768 is about 1601.1770670354. The cubic root of 2563768 is about 136.8651593879.

The spelling of 2563768 in words is "two million, five hundred sixty-three thousand, seven hundred sixty-eight".