26809948 has 24 divisors (see below), whose sum is σ = 51521904. Its totient is φ = 12105600.

The previous prime is 26809943. The next prime is 26809961. The reversal of 26809948 is 84990862.

It is a junction number, because it is equal to n+sod(n) for n = 26809898 and 26809907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26809943) 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, 4968 + ... + 8848.

It is an arithmetic number, because the mean of its divisors is an integer number (2146746).

Almost surely, 2^26809948 is an apocalyptic number.

It is an amenable number.

26809948 is a deficient number, since it is larger than the sum of its proper divisors (24711956).

26809948 is a wasteful number, since it uses less digits than its factorization.

26809948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4053 (or 4051 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 26809948 is about 5177.8323649960. The cubic root of 26809948 is about 299.2944456481.

Subtracting from 26809948 its product of nonzero digits (248832), we obtain a triangular number (26561116 = T₇₂₈₈).

The spelling of 26809948 in words is "twenty-six million, eight hundred nine thousand, nine hundred forty-eight".