26815628 has 12 divisors (see below), whose sum is σ = 53631312. Its totient is φ = 11492400.

The previous prime is 26815603. The next prime is 26815643. The reversal of 26815628 is 82651862.

26815628 is an admirable number.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 26815591 and 26815600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 478823 + ... + 478878.

It is an arithmetic number, because the mean of its divisors is an integer number (4469276).

Almost surely, 2^26815628 is an apocalyptic number.

26815628 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

26815628 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26815628 is a wasteful number, since it uses less digits than its factorization.

26815628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 957712 (or 957710 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 26815628 is about 5178.3808280195. The cubic root of 26815628 is about 299.3155804946.

It can be divided in two parts, 26 and 815628, that multiplied together give a triangular number (21206328 = T₆₅₁₂).

The spelling of 26815628 in words is "twenty-six million, eight hundred fifteen thousand, six hundred twenty-eight".