20726950 has 12 divisors (see below), whose sum is σ = 38552220. Its totient is φ = 8290760.

The previous prime is 20726939. The next prime is 20726971. The reversal of 20726950 is 5962702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207220 + ... + 207319.

It is an arithmetic number, because the mean of its divisors is an integer number (3212685).

Almost surely, 2^20726950 is an apocalyptic number.

20726950 is a deficient number, since it is larger than the sum of its proper divisors (17825270).

20726950 is a wasteful number, since it uses less digits than its factorization.

20726950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414551 (or 414546 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 20726950 is about 4552.6860203620. The cubic root of 20726950 is about 274.6914445578.

The spelling of 20726950 in words is "twenty million, seven hundred twenty-six thousand, nine hundred fifty".