20731348 has 24 divisors (see below), whose sum is σ = 39703104. Its totient is φ = 9393600.

The previous prime is 20731339. The next prime is 20731351. The reversal of 20731348 is 84313702.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19593 + ... + 20623.

It is an arithmetic number, because the mean of its divisors is an integer number (1654296).

Almost surely, 2^20731348 is an apocalyptic number.

It is an amenable number.

20731348 is a deficient number, since it is larger than the sum of its proper divisors (18971756).

20731348 is a wasteful number, since it uses less digits than its factorization.

20731348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1503 (or 1501 counting only the distinct ones).

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

The square root of 20731348 is about 4553.1690063076. The cubic root of 20731348 is about 274.7108718820.

The spelling of 20731348 in words is "twenty million, seven hundred thirty-one thousand, three hundred forty-eight".