20239412 has 12 divisors (see below), whose sum is σ = 36242976. Its totient is φ = 9884280.

The previous prime is 20239411. The next prime is 20239423. The reversal of 20239412 is 21493202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20239411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58664 + ... + 59007.

It is an arithmetic number, because the mean of its divisors is an integer number (3020248).

Almost surely, 2^20239412 is an apocalyptic number.

It is an amenable number.

20239412 is a deficient number, since it is larger than the sum of its proper divisors (16003564).

20239412 is a wasteful number, since it uses less digits than its factorization.

20239412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117718 (or 117716 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 20239412 is about 4498.8234017352. The cubic root of 20239412 is about 272.5205752778.

The spelling of 20239412 in words is "twenty million, two hundred thirty-nine thousand, four hundred twelve".