26402849 has 4 divisors (see below), whose sum is σ = 28803120. Its totient is φ = 24002580.

The previous prime is 26402843. The next prime is 26402863. The reversal of 26402849 is 94820462.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 26402849 - 2¹² = 26398753 is a prime.

It is a super-2 number, since 2×26402849² = 1394220870633602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26402843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1200119 + ... + 1200140.

It is an arithmetic number, because the mean of its divisors is an integer number (7200780).

Almost surely, 2^26402849 is an apocalyptic number.

It is an amenable number.

26402849 is a deficient number, since it is larger than the sum of its proper divisors (2400271).

26402849 is a wasteful number, since it uses less digits than its factorization.

26402849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400270.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 26402849 is about 5138.3702669232. The cubic root of 26402849 is about 297.7718213343.

The spelling of 26402849 in words is "twenty-six million, four hundred two thousand, eight hundred forty-nine".