20136790 has 8 divisors (see below), whose sum is σ = 36246240. Its totient is φ = 8054712.

The previous prime is 20136773. The next prime is 20136803. The reversal of 20136790 is 9763102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006830 + ... + 1006849.

It is an arithmetic number, because the mean of its divisors is an integer number (4530780).

Almost surely, 2^20136790 is an apocalyptic number.

20136790 is a deficient number, since it is larger than the sum of its proper divisors (16109450).

20136790 is a wasteful number, since it uses less digits than its factorization.

20136790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2013686.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 20136790 is about 4487.4034808562. The cubic root of 20136790 is about 272.0591981158.

Adding to 20136790 its reverse (9763102), we get a palindrome (29899892).

The spelling of 20136790 in words is "twenty million, one hundred thirty-six thousand, seven hundred ninety".