26428956 has 12 divisors (see below), whose sum is σ = 61667592. Its totient is φ = 8809648.

The previous prime is 26428949. The next prime is 26429009. The reversal of 26428956 is 65982462.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 1101195 + ... + 1101218.

It is an arithmetic number, because the mean of its divisors is an integer number (5138966).

Almost surely, 2^26428956 is an apocalyptic number.

It is an amenable number.

26428956 is an abundant number, since it is smaller than the sum of its proper divisors (35238636).

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

26428956 is a wasteful number, since it uses less digits than its factorization.

26428956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2202420 (or 2202418 counting only the distinct ones).

The product of its digits is 207360, while the sum is 42.

The square root of 26428956 is about 5140.9100361706. The cubic root of 26428956 is about 297.8699340806.

The spelling of 26428956 in words is "twenty-six million, four hundred twenty-eight thousand, nine hundred fifty-six".