20768152 has 32 divisors (see below), whose sum is σ = 41774400. Its totient is φ = 9644544.

The previous prime is 20768141. The next prime is 20768173. The reversal of 20768152 is 25186702.

It is a super-2 number, since 2×20768152² = 862632274990208, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 9778 + ... + 11710.

It is an arithmetic number, because the mean of its divisors is an integer number (1305450).

Almost surely, 2^20768152 is an apocalyptic number.

It is an amenable number.

20768152 is an abundant number, since it is smaller than the sum of its proper divisors (21006248).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20768152 is a wasteful number, since it uses less digits than its factorization.

20768152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035 (or 2031 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 20768152 is about 4557.2087948656. The cubic root of 20768152 is about 274.8733389158.

The spelling of 20768152 in words is "twenty million, seven hundred sixty-eight thousand, one hundred fifty-two".