26956820 has 48 divisors (see below), whose sum is σ = 65016000. Its totient is φ = 9285120.

The previous prime is 26956819. The next prime is 26956837. The reversal of 26956820 is 2865962.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 956 + ... + 7404.

It is an arithmetic number, because the mean of its divisors is an integer number (1354500).

Almost surely, 2^26956820 is an apocalyptic number.

26956820 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 26956820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32508000).

26956820 is an abundant number, since it is smaller than the sum of its proper divisors (38059180).

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

26956820 is a wasteful number, since it uses less digits than its factorization.

26956820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6488 (or 6486 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 26956820 is about 5191.9957627101. The cubic root of 26956820 is about 299.8399887439.

The spelling of 26956820 in words is "twenty-six million, nine hundred fifty-six thousand, eight hundred twenty".