20199412 has 6 divisors (see below), whose sum is σ = 35348978. Its totient is φ = 10099704.

The previous prime is 20199409. The next prime is 20199427. The reversal of 20199412 is 21499102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 20034576 + 164836 = 4476^2 + 406^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2524923 + ... + 2524930.

Almost surely, 2^20199412 is an apocalyptic number.

It is an amenable number.

20199412 is a deficient number, since it is larger than the sum of its proper divisors (15149566).

20199412 is a wasteful number, since it uses less digits than its factorization.

20199412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049857 (or 5049855 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 20199412 is about 4494.3755962314. The cubic root of 20199412 is about 272.3409255897.

The spelling of 20199412 in words is "twenty million, one hundred ninety-nine thousand, four hundred twelve".