26722980 has 192 divisors, whose sum is σ = 91445760. Its totient is φ = 6451200.

The previous prime is 26722967. The next prime is 26722999. The reversal of 26722980 is 8922762.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 376345 + ... + 376415.

It is an arithmetic number, because the mean of its divisors is an integer number (476280).

Almost surely, 2^26722980 is an apocalyptic number.

26722980 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 26722980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45722880).

26722980 is an abundant number, since it is smaller than the sum of its proper divisors (64722780).

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

26722980 is a wasteful number, since it uses less digits than its factorization.

26722980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 26722980 is about 5169.4274344457. The cubic root of 26722980 is about 298.9704709413.

The spelling of 26722980 in words is "twenty-six million, seven hundred twenty-two thousand, nine hundred eighty".