20726726 has 8 divisors (see below), whose sum is σ = 32441904. Its totient is φ = 9912760.

The previous prime is 20726711. The next prime is 20726737. The reversal of 20726726 is 62762702.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20726692 and 20726701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225245 + ... + 225336.

It is an arithmetic number, because the mean of its divisors is an integer number (4055238).

Almost surely, 2^20726726 is an apocalyptic number.

20726726 is a deficient number, since it is larger than the sum of its proper divisors (11715178).

20726726 is a wasteful number, since it uses less digits than its factorization.

20726726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450606.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 20726726 is about 4552.6614194337. The cubic root of 20726726 is about 274.6904550071.

The spelling of 20726726 in words is "twenty million, seven hundred twenty-six thousand, seven hundred twenty-six".