20137384 has 32 divisors (see below), whose sum is σ = 40201920. Its totient is φ = 9423616.

The previous prime is 20137357. The next prime is 20137393. The reversal of 20137384 is 48373102.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 35487 + ... + 36049.

It is an arithmetic number, because the mean of its divisors is an integer number (1256310).

Almost surely, 2^20137384 is an apocalyptic number.

It is an amenable number.

20137384 is a deficient number, since it is larger than the sum of its proper divisors (20064536).

20137384 is a wasteful number, since it uses less digits than its factorization.

20137384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 845 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20137384 is about 4487.4696656356. The cubic root of 20137384 is about 272.0618731792.

The spelling of 20137384 in words is "twenty million, one hundred thirty-seven thousand, three hundred eighty-four".