20230736 has 20 divisors (see below), whose sum is σ = 39938292. Its totient is φ = 9924096.

The previous prime is 20230667. The next prime is 20230741. The reversal of 20230736 is 63703202.

It can be written as a sum of positive squares in 2 ways, for example, as 6864400 + 13366336 = 2620^2 + 3656^2 .

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, 11081 + ... + 12776.

Almost surely, 2^20230736 is an apocalyptic number.

It is an amenable number.

20230736 is a deficient number, since it is larger than the sum of its proper divisors (19707556).

20230736 is a wasteful number, since it uses less digits than its factorization.

20230736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23918 (or 23912 counting only the distinct ones).

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

The square root of 20230736 is about 4497.8590462575. The cubic root of 20230736 is about 272.4816293763.

Adding to 20230736 its reverse (63703202), we get a palindrome (83933938).

The spelling of 20230736 in words is "twenty million, two hundred thirty thousand, seven hundred thirty-six".