26012091 has 32 divisors (see below), whose sum is σ = 42854400. Its totient is φ = 13980288.

The previous prime is 26012089. The next prime is 26012111. The reversal of 26012091 is 19021062.

It is not a de Polignac number, because 26012091 - 2¹ = 26012089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (26012191) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16750 + ... + 18236.

It is an arithmetic number, because the mean of its divisors is an integer number (1339200).

Almost surely, 2^26012091 is an apocalyptic number.

26012091 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

26012091 is a deficient number, since it is larger than the sum of its proper divisors (16842309).

26012091 is a wasteful number, since it uses less digits than its factorization.

26012091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1528 (or 1514 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 26012091 is about 5100.2049958801. The cubic root of 26012091 is about 296.2955222111.

The spelling of 26012091 in words is "twenty-six million, twelve thousand, ninety-one".