26400413 has 8 divisors (see below), whose sum is σ = 28968408. Its totient is φ = 23909184.

The previous prime is 26400401. The next prime is 26400421. The reversal of 26400413 is 31400462.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3771364 + 22629049 = 1942^2 + 4757^2 .

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

It is not a de Polignac number, because 26400413 - 2⁴ = 26400397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26400463) 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, 18470 + ... + 19847.

It is an arithmetic number, because the mean of its divisors is an integer number (3621051).

Almost surely, 2^26400413 is an apocalyptic number.

It is an amenable number.

26400413 is a deficient number, since it is larger than the sum of its proper divisors (2567995).

26400413 is a wasteful number, since it uses less digits than its factorization.

26400413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38383.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 26400413 is about 5138.1332213169. The cubic root of 26400413 is about 297.7626633016.

Adding to 26400413 its reverse (31400462), we get a palindrome (57800875).

The spelling of 26400413 in words is "twenty-six million, four hundred thousand, four hundred thirteen".