2563386 has 24 divisors (see below), whose sum is σ = 5964480. Its totient is φ = 732312.

The previous prime is 2563381. The next prime is 2563387. The reversal of 2563386 is 6833652.

It is not an unprimeable number, because it can be changed into a prime (2563381) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4066 + ... + 4653.

It is an arithmetic number, because the mean of its divisors is an integer number (248520).

2^2563386 is an apocalyptic number.

2563386 is an abundant number, since it is smaller than the sum of its proper divisors (3401094).

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

2563386 is a wasteful number, since it uses less digits than its factorization.

2563386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8738 (or 8731 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 2563386 is about 1601.0577753473. The cubic root of 2563386 is about 136.8583614395.

The spelling of 2563386 in words is "two million, five hundred sixty-three thousand, three hundred eighty-six".