26863940 has 12 divisors (see below), whose sum is σ = 56414316. Its totient is φ = 10745568.

The previous prime is 26863933. The next prime is 26863943. The reversal of 26863940 is 4936862.

It can be written as a sum of positive squares in 2 ways, for example, as 9156676 + 17707264 = 3026^2 + 4208^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26863894 and 26863903.

It is not an unprimeable number, because it can be changed into a prime (26863943) 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, 671579 + ... + 671618.

It is an arithmetic number, because the mean of its divisors is an integer number (4701193).

Almost surely, 2^26863940 is an apocalyptic number.

26863940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26863940 is an abundant number, since it is smaller than the sum of its proper divisors (29550376).

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

26863940 is a wasteful number, since it uses less digits than its factorization.

26863940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343206 (or 1343204 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 26863940 is about 5183.0435074385. The cubic root of 26863940 is about 299.4952252252.

The spelling of 26863940 in words is "twenty-six million, eight hundred sixty-three thousand, nine hundred forty".