20798726 has 32 divisors (see below), whose sum is σ = 34927200. Its totient is φ = 9227520.

The previous prime is 20798717. The next prime is 20798731. The reversal of 20798726 is 62789702.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 116105 + ... + 116283.

It is an arithmetic number, because the mean of its divisors is an integer number (1091475).

Almost surely, 2^20798726 is an apocalyptic number.

20798726 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

20798726 is a deficient number, since it is larger than the sum of its proper divisors (14128474).

20798726 is a wasteful number, since it uses less digits than its factorization.

20798726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 20798726 is about 4560.5620267682. The cubic root of 20798726 is about 275.0081584356.

The spelling of 20798726 in words is "twenty million, seven hundred ninety-eight thousand, seven hundred twenty-six".