26069421 has 24 divisors (see below), whose sum is σ = 40830240. Its totient is φ = 14751072.

The previous prime is 26069401. The next prime is 26069431. The reversal of 26069421 is 12496062.

It is not a de Polignac number, because 26069421 - 2⁷ = 26069293 is a prime.

It is a super-2 number, since 2×26069421² = 1359229422550482, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26069401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15210 + ... + 16836.

It is an arithmetic number, because the mean of its divisors is an integer number (1701260).

Almost surely, 2^26069421 is an apocalyptic number.

26069421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26069421 is a deficient number, since it is larger than the sum of its proper divisors (14760819).

26069421 is a wasteful number, since it uses less digits than its factorization.

26069421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1753 (or 1746 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 26069421 is about 5105.8222648267. The cubic root of 26069421 is about 296.5130384703.

The spelling of 26069421 in words is "twenty-six million, sixty-nine thousand, four hundred twenty-one".