26811040 has 48 divisors (see below), whose sum is σ = 67073832. Its totient is φ = 10092544.

The previous prime is 26811019. The next prime is 26811041. The reversal of 26811040 is 4011862.

It can be written as a sum of positive squares in 4 ways, for example, as 23078416 + 3732624 = 4804^2 + 1932^2 .

It is not an unprimeable number, because it can be changed into a prime (26811041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2209 + ... + 7648.

Almost surely, 2^26811040 is an apocalyptic number.

26811040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26811040 is an abundant number, since it is smaller than the sum of its proper divisors (40262792).

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

26811040 is a wasteful number, since it uses less digits than its factorization.

26811040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9889 (or 9881 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 26811040 is about 5177.9378134543. The cubic root of 26811040 is about 299.2985091285.

It can be divided in two parts, 2681 and 1040, that added together give a square (3721 = 61²).

The spelling of 26811040 in words is "twenty-six million, eight hundred eleven thousand, forty".