20763020 has 24 divisors (see below), whose sum is σ = 45499104. Its totient is φ = 7943936.

The previous prime is 20763019. The next prime is 20763047. The reversal of 20763020 is 2036702.

It is a super-2 number, since 2×20763020² = 862205999040800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 20762983 and 20763001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22109 + ... + 23028.

It is an arithmetic number, because the mean of its divisors is an integer number (1895796).

Almost surely, 2^20763020 is an apocalyptic number.

20763020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20763020 is an abundant number, since it is smaller than the sum of its proper divisors (24736084).

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

20763020 is a wasteful number, since it uses less digits than its factorization.

20763020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45169 (or 45167 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 20763020 is about 4556.6456961234. The cubic root of 20763020 is about 274.8506958133.

Adding to 20763020 its reverse (2036702), we get a palindrome (22799722).

The spelling of 20763020 in words is "twenty million, seven hundred sixty-three thousand, twenty".