26666480 has 20 divisors (see below), whose sum is σ = 61999752. Its totient is φ = 10666560.

The previous prime is 26666477. The next prime is 26666483. The reversal of 26666480 is 8466662.

It is an interprime number because it is at equal distance from previous prime (26666477) and next prime (26666483).

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×26666480² = 1422202311180800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26666483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166586 + ... + 166745.

Almost surely, 2^26666480 is an apocalyptic number.

26666480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26666480 is an abundant number, since it is smaller than the sum of its proper divisors (35333272).

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

26666480 is a wasteful number, since it uses less digits than its factorization.

26666480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333344 (or 333338 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 26666480 is about 5163.9597209893. The cubic root of 26666480 is about 298.7596193281.

The spelling of 26666480 in words is "twenty-six million, six hundred sixty-six thousand, four hundred eighty".