20726152 has 8 divisors (see below), whose sum is σ = 38861550. Its totient is φ = 10363072.

The previous prime is 20726149. The next prime is 20726171. The reversal of 20726152 is 25162702.

It can be written as a sum of positive squares in only one way, i.e., 19412836 + 1313316 = 4406^2 + 1146^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1295377 + ... + 1295392.

Almost surely, 2^20726152 is an apocalyptic number.

It is an amenable number.

20726152 is a deficient number, since it is larger than the sum of its proper divisors (18135398).

20726152 is a wasteful number, since it uses less digits than its factorization.

20726152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2590775 (or 2590771 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20726152 is about 4552.5983789480. The cubic root of 20726152 is about 274.6879192508.

Adding to 20726152 its reverse (25162702), we get a palindrome (45888854).

The spelling of 20726152 in words is "twenty million, seven hundred twenty-six thousand, one hundred fifty-two".