26749870 has 32 divisors (see below), whose sum is σ = 56314368. Its totient is φ = 8957088.

The previous prime is 26749867. The next prime is 26749871. The reversal of 26749870 is 7894762.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26749871) 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 15 ways as a sum of consecutive naturals, for example, 1434 + ... + 7453.

It is an arithmetic number, because the mean of its divisors is an integer number (1759824).

Almost surely, 2^26749870 is an apocalyptic number.

26749870 is an abundant number, since it is smaller than the sum of its proper divisors (29564498).

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

26749870 is a wasteful number, since it uses less digits than its factorization.

26749870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8944.

The product of its (nonzero) digits is 169344, while the sum is 43.

The square root of 26749870 is about 5172.0276488047. The cubic root of 26749870 is about 299.0707170085.

It can be divided in two parts, 2674 and 9870, that added together give a square (12544 = 112²).

The spelling of 26749870 in words is "twenty-six million, seven hundred forty-nine thousand, eight hundred seventy".