26061820 has 12 divisors (see below), whose sum is σ = 54729864. Its totient is φ = 10424720.

The previous prime is 26061817. The next prime is 26061821. The reversal of 26061820 is 2816062.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26061821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 651526 + ... + 651565.

It is an arithmetic number, because the mean of its divisors is an integer number (4560822).

Almost surely, 2^26061820 is an apocalyptic number.

26061820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26061820 is an abundant number, since it is smaller than the sum of its proper divisors (28668044).

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

26061820 is a wasteful number, since it uses less digits than its factorization.

26061820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1303100 (or 1303098 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 26061820 is about 5105.0778642446. The cubic root of 26061820 is about 296.4842177984.

Adding to 26061820 its reverse (2816062), we get a palindrome (28877882).

The spelling of 26061820 in words is "twenty-six million, sixty-one thousand, eight hundred twenty".