20738630 has 16 divisors (see below), whose sum is σ = 40723344. Its totient is φ = 7541280.

The previous prime is 20738593. The next prime is 20738639. The reversal of 20738630 is 3683702.

It is a junction number, because it is equal to n+sod(n) for n = 20738593 and 20738602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20738639) 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, 94157 + ... + 94376.

It is an arithmetic number, because the mean of its divisors is an integer number (2545209).

Almost surely, 2^20738630 is an apocalyptic number.

20738630 is a deficient number, since it is larger than the sum of its proper divisors (19984714).

20738630 is a wasteful number, since it uses less digits than its factorization.

20738630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188551.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 20738630 is about 4553.9685989256. The cubic root of 20738630 is about 274.7430326850.

The spelling of 20738630 in words is "twenty million, seven hundred thirty-eight thousand, six hundred thirty".