20137630 has 16 divisors (see below), whose sum is σ = 36514800. Its totient is φ = 7995712.

The previous prime is 20137619. The next prime is 20137651. The reversal of 20137630 is 3673102.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5980 + ... + 8719.

It is an arithmetic number, because the mean of its divisors is an integer number (2282175).

Almost surely, 2^20137630 is an apocalyptic number.

20137630 is a deficient number, since it is larger than the sum of its proper divisors (16377170).

20137630 is a wasteful number, since it uses less digits than its factorization.

20137630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14843.

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

The square root of 20137630 is about 4487.4970752080. The cubic root of 20137630 is about 272.0629810184.

The spelling of 20137630 in words is "twenty million, one hundred thirty-seven thousand, six hundred thirty".