26990620 has 12 divisors (see below), whose sum is σ = 56680344. Its totient is φ = 10796240.

The previous prime is 26990617. The next prime is 26990629. The reversal of 26990620 is 2609962.

It is a super-3 number, since 3×26990620³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26990629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 674746 + ... + 674785.

It is an arithmetic number, because the mean of its divisors is an integer number (4723362).

Almost surely, 2^26990620 is an apocalyptic number.

26990620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26990620 is an abundant number, since it is smaller than the sum of its proper divisors (29689724).

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

26990620 is a wasteful number, since it uses less digits than its factorization.

26990620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349540 (or 1349538 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 26990620 is about 5195.2497533805. The cubic root of 26990620 is about 299.9652552354.

The spelling of 26990620 in words is "twenty-six million, nine hundred ninety thousand, six hundred twenty".