26980500 has 48 divisors (see below), whose sum is σ = 78571584. Its totient is φ = 7194400.

The previous prime is 26980463. The next prime is 26980507. The reversal of 26980500 is 508962.

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 (26980507) 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, 7494 + ... + 10493.

It is an arithmetic number, because the mean of its divisors is an integer number (1636908).

Almost surely, 2^26980500 is an apocalyptic number.

26980500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26980500 is an abundant number, since it is smaller than the sum of its proper divisors (51591084).

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

26980500 is a wasteful number, since it uses less digits than its factorization.

26980500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18009 (or 17997 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 26980500 is about 5194.2756954170. The cubic root of 26980500 is about 299.9277603840.

The spelling of 26980500 in words is "twenty-six million, nine hundred eighty thousand, five hundred".