26485980 has 48 divisors (see below), whose sum is σ = 74511360. Its totient is φ = 7029568.

The previous prime is 26485951. The next prime is 26485993. The reversal of 26485980 is 8958462.

It is a congruent number.

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, 13417 + ... + 15263.

It is an arithmetic number, because the mean of its divisors is an integer number (1552320).

Almost surely, 2^26485980 is an apocalyptic number.

26485980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26485980 is an abundant number, since it is smaller than the sum of its proper divisors (48025380).

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

26485980 is a wasteful number, since it uses less digits than its factorization.

26485980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2098 (or 2096 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 26485980 is about 5146.4531475571. The cubic root of 26485980 is about 298.0840115671.

The spelling of 26485980 in words is "twenty-six million, four hundred eighty-five thousand, nine hundred eighty".