26404430 has 32 divisors (see below), whose sum is σ = 51716448. Its totient is φ = 9648000.

The previous prime is 26404423. The next prime is 26404453. The reversal of 26404430 is 3440462.

26404430 = 26² + 27² + ... + 429².

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 26404396 and 26404405.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12125 + ... + 14135.

It is an arithmetic number, because the mean of its divisors is an integer number (1616139).

Almost surely, 2^26404430 is an apocalyptic number.

26404430 is a deficient number, since it is larger than the sum of its proper divisors (25312018).

26404430 is a wasteful number, since it uses less digits than its factorization.

26404430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 26404430 is about 5138.5241071732. The cubic root of 26404430 is about 297.7777647315. Note that the first 4 decimals are identical.

Adding to 26404430 its reverse (3440462), we get a palindrome (29844892).

The spelling of 26404430 in words is "twenty-six million, four hundred four thousand, four hundred thirty".