26831480 has 32 divisors (see below), whose sum is σ = 65016000. Its totient is φ = 9906816.

The previous prime is 26831459. The next prime is 26831509. The reversal of 26831480 is 8413862.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25280 + ... + 26319.

It is an arithmetic number, because the mean of its divisors is an integer number (2031750).

Almost surely, 2^26831480 is an apocalyptic number.

26831480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26831480 is an abundant number, since it is smaller than the sum of its proper divisors (38184520).

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

26831480 is a wasteful number, since it uses less digits than its factorization.

26831480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51623 (or 51619 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 26831480 is about 5179.9111961500. The cubic root of 26831480 is about 299.3745487940.

The spelling of 26831480 in words is "twenty-six million, eight hundred thirty-one thousand, four hundred eighty".