20744361 has 36 divisors (see below), whose sum is σ = 33777744. Its totient is φ = 12252240.

The previous prime is 20744327. The next prime is 20744377. The reversal of 20744361 is 16344702.

It is not a de Polignac number, because 20744361 - 2¹⁰ = 20743337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20744261) 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 35 ways as a sum of consecutive naturals, for example, 46606 + ... + 47048.

Almost surely, 2^20744361 is an apocalyptic number.

It is an amenable number.

20744361 is a deficient number, since it is larger than the sum of its proper divisors (13033383).

20744361 is a wasteful number, since it uses less digits than its factorization.

20744361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514 (or 500 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20744361 is about 4554.5977868523. The cubic root of 20744361 is about 274.7683382348.

The spelling of 20744361 in words is "twenty million, seven hundred forty-four thousand, three hundred sixty-one".