26999420 has 24 divisors (see below), whose sum is σ = 64798944. Its totient is φ = 9256896.

The previous prime is 26999411. The next prime is 26999431. The reversal of 26999420 is 2499962.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96287 + ... + 96566.

It is an arithmetic number, because the mean of its divisors is an integer number (2699956).

Almost surely, 2^26999420 is an apocalyptic number.

26999420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26999420 is an abundant number, since it is smaller than the sum of its proper divisors (37799524).

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

26999420 is a wasteful number, since it uses less digits than its factorization.

26999420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192869 (or 192867 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 26999420 is about 5196.0966118809. The cubic root of 26999420 is about 299.9978518365.

The spelling of 26999420 in words is "twenty-six million, nine hundred ninety-nine thousand, four hundred twenty".