20741899 has 8 divisors (see below), whose sum is σ = 21288960. Its totient is φ = 20199336.

The previous prime is 20741879. The next prime is 20741947. The reversal of 20741899 is 99814702.

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

It is a cyclic number.

It is not a de Polignac number, because 20741899 - 2⁷ = 20741771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20741839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9492 + ... + 11470.

It is an arithmetic number, because the mean of its divisors is an integer number (2661120).

Almost surely, 2^20741899 is an apocalyptic number.

20741899 is a deficient number, since it is larger than the sum of its proper divisors (547061).

20741899 is a wasteful number, since it uses less digits than its factorization.

20741899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 20741899 is about 4554.3275024969. The cubic root of 20741899 is about 274.7574677077.

The spelling of 20741899 in words is "twenty million, seven hundred forty-one thousand, eight hundred ninety-nine".