26668429 has 8 divisors (see below), whose sum is σ = 27648000. Its totient is φ = 25692912.

The previous prime is 26668423. The next prime is 26668459. The reversal of 26668429 is 92486662.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 26668429 - 2¹³ = 26660237 is a prime.

It is a super-2 number, since 2×26668429² = 1422410210656082, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26668423) 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, 20212 + ... + 21490.

It is an arithmetic number, because the mean of its divisors is an integer number (3456000).

Almost surely, 2^26668429 is an apocalyptic number.

26668429 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

26668429 is a deficient number, since it is larger than the sum of its proper divisors (979571).

26668429 is a wasteful number, since it uses less digits than its factorization.

26668429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2027.

The product of its digits is 248832, while the sum is 43.

The square root of 26668429 is about 5164.1484293153. The cubic root of 26668429 is about 298.7668977330.

The spelling of 26668429 in words is "twenty-six million, six hundred sixty-eight thousand, four hundred twenty-nine".