26428826 has 4 divisors (see below), whose sum is σ = 39643242. Its totient is φ = 13214412.

The previous prime is 26428823. The next prime is 26428837. The reversal of 26428826 is 62882462.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 25999801 + 429025 = 5099^2 + 655^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26428826.

It is not an unprimeable number, because it can be changed into a prime (26428823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6607205 + ... + 6607208.

Almost surely, 2^26428826 is an apocalyptic number.

26428826 is a deficient number, since it is larger than the sum of its proper divisors (13214416).

26428826 is a wasteful number, since it uses less digits than its factorization.

26428826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13214415.

The product of its digits is 73728, while the sum is 38.

The square root of 26428826 is about 5140.8973924793. The cubic root of 26428826 is about 297.8694456875.

It can be divided in two parts, 26428 and 826, that multiplied together give a triangular number (21829528 = T₆₆₀₇).

The spelling of 26428826 in words is "twenty-six million, four hundred twenty-eight thousand, eight hundred twenty-six".