20763130 has 16 divisors (see below), whose sum is σ = 38662920. Its totient is φ = 8018752.

The previous prime is 20763091. The next prime is 20763131. The reversal of 20763130 is 3136702.

It can be written as a sum of positive squares in 4 ways, for example, as 20187049 + 576081 = 4493^2 + 759^2 .

It is a super-2 number, since 2×20763130² = 862215134793800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20763131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35509 + ... + 36088.

Almost surely, 2^20763130 is an apocalyptic number.

20763130 is a deficient number, since it is larger than the sum of its proper divisors (17899790).

20763130 is a wasteful number, since it uses less digits than its factorization.

20763130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71633.

The product of its (nonzero) digits is 756, while the sum is 22.

The square root of 20763130 is about 4556.6577663897. The cubic root of 20763130 is about 274.8511811878.

Adding to 20763130 its reverse (3136702), we get a palindrome (23899832).

The spelling of 20763130 in words is "twenty million, seven hundred sixty-three thousand, one hundred thirty".