26424820 has 24 divisors (see below), whose sum is σ = 58413600. Its totient is φ = 10013472.

The previous prime is 26424809. The next prime is 26424821. The reversal of 26424820 is 2842462.

It is a super-2 number, since 2×26424820² = 1396542224064800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26424821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34390 + ... + 35149.

It is an arithmetic number, because the mean of its divisors is an integer number (2433900).

Almost surely, 2^26424820 is an apocalyptic number.

26424820 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26424820 is an abundant number, since it is smaller than the sum of its proper divisors (31988780).

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

26424820 is a wasteful number, since it uses less digits than its factorization.

26424820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69567 (or 69565 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

The square root of 26424820 is about 5140.5077570217. The cubic root of 26424820 is about 297.8543948828.

The spelling of 26424820 in words is "twenty-six million, four hundred twenty-four thousand, eight hundred twenty".