26172480 has 112 divisors (see below), whose sum is σ = 84124800. Its totient is φ = 6893568.

The previous prime is 26172457. The next prime is 26172491. The reversal of 26172480 is 8427162.

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

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 15 ways as a sum of consecutive naturals, for example, 131421 + ... + 131619.

Almost surely, 2^26172480 is an apocalyptic number.

26172480 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 26172480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42062400).

26172480 is an abundant number, since it is smaller than the sum of its proper divisors (57952320).

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

26172480 is a wasteful number, since it uses less digits than its factorization.

26172480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 26172480 is about 5115.9046120896. The cubic root of 26172480 is about 296.9032550023.

The spelling of 26172480 in words is "twenty-six million, one hundred seventy-two thousand, four hundred eighty".