26273280 has 160 divisors (see below), whose sum is σ = 91922688. Its totient is φ = 6348800.

The previous prime is 26273263. The next prime is 26273281. The reversal of 26273280 is 8237262.

It is a tau number, because it is divible by the number of its divisors (160).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26273281) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84325 + ... + 84635.

Almost surely, 2^26273280 is an apocalyptic number.

26273280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26273280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45961344).

26273280 is an abundant number, since it is smaller than the sum of its proper divisors (65649408).

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

26273280 is a wasteful number, since it uses less digits than its factorization.

26273280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 26273280 is about 5125.7467748612. The cubic root of 26273280 is about 297.2839285061.

The spelling of 26273280 in words is "twenty-six million, two hundred seventy-three thousand, two hundred eighty".