20726248 has 32 divisors (see below), whose sum is σ = 40032000. Its totient is φ = 10055232.

The previous prime is 20726239. The next prime is 20726257. The reversal of 20726248 is 84262702.

It is an interprime number because it is at equal distance from previous prime (20726239) and next prime (20726257).

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 7 ways as a sum of consecutive naturals, for example, 74686 + ... + 74962.

It is an arithmetic number, because the mean of its divisors is an integer number (1251000).

Almost surely, 2^20726248 is an apocalyptic number.

It is an amenable number.

20726248 is a deficient number, since it is larger than the sum of its proper divisors (19305752).

20726248 is a wasteful number, since it uses less digits than its factorization.

20726248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 20726248 is about 4552.6089223653. The cubic root of 20726248 is about 274.6883433526.

The spelling of 20726248 in words is "twenty million, seven hundred twenty-six thousand, two hundred forty-eight".