26840480 has 48 divisors (see below), whose sum is σ = 63776160. Its totient is φ = 10674432.

The previous prime is 26840479. The next prime is 26840507. The reversal of 26840480 is 8404862.

It is a super-2 number, since 2×26840480² = 1440822733260800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

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 7 ways as a sum of consecutive naturals, for example, 35951 + ... + 36689.

It is an arithmetic number, because the mean of its divisors is an integer number (1328670).

Almost surely, 2^26840480 is an apocalyptic number.

26840480 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 26840480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31888080).

26840480 is an abundant number, since it is smaller than the sum of its proper divisors (36935680).

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

26840480 is a wasteful number, since it uses less digits than its factorization.

26840480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981 (or 973 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 32.

The square root of 26840480 is about 5180.7798640745. The cubic root of 26840480 is about 299.4080178105.

The spelling of 26840480 in words is "twenty-six million, eight hundred forty thousand, four hundred eighty".