20273630 has 32 divisors (see below), whose sum is σ = 39511584. Its totient is φ = 7445376.

The previous prime is 20273587. The next prime is 20273641. The reversal of 20273630 is 3637202.

It is a super-2 number, since 2×20273630² = 822040146753800, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20273596 and 20273605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35729 + ... + 36291.

It is an arithmetic number, because the mean of its divisors is an integer number (1234737).

Almost surely, 2^20273630 is an apocalyptic number.

20273630 is a deficient number, since it is larger than the sum of its proper divisors (19237954).

20273630 is a wasteful number, since it uses less digits than its factorization.

20273630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 20273630 is about 4502.6247900530. The cubic root of 20273630 is about 272.6740688472.

The spelling of 20273630 in words is "twenty million, two hundred seventy-three thousand, six hundred thirty".