20225630 has 16 divisors (see below), whose sum is σ = 36487584. Its totient is φ = 8072160.

The previous prime is 20225629. The next prime is 20225641. The reversal of 20225630 is 3652202.

It is a happy number.

It is a super-2 number, since 2×20225630² = 818152217793800, which contains 22 as substring.

It is a congruent number.

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, 3020 + ... + 7040.

It is an arithmetic number, because the mean of its divisors is an integer number (2280474).

Almost surely, 2^20225630 is an apocalyptic number.

20225630 is a deficient number, since it is larger than the sum of its proper divisors (16261954).

20225630 is a wasteful number, since it uses less digits than its factorization.

20225630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 20225630 is about 4497.2914070583. The cubic root of 20225630 is about 272.4587037272.

Adding to 20225630 its reverse (3652202), we get a palindrome (23877832).

The spelling of 20225630 in words is "twenty million, two hundred twenty-five thousand, six hundred thirty".