20560342 has 8 divisors (see below), whose sum is σ = 33644232. Its totient is φ = 9345600.

The previous prime is 20560339. The next prime is 20560369. The reversal of 20560342 is 24306502.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 934561 = 20560342 / (2 + 0 + 5 + 6 + 0 + 3 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 467259 + ... + 467302.

It is an arithmetic number, because the mean of its divisors is an integer number (4205529).

Almost surely, 2^20560342 is an apocalyptic number.

20560342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20560342 is a deficient number, since it is larger than the sum of its proper divisors (13083890).

20560342 is a wasteful number, since it uses less digits than its factorization.

20560342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934574.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 20560342 is about 4534.3513317783. The cubic root of 20560342 is about 273.9534525863.

Adding to 20560342 its reverse (24306502), we get a palindrome (44866844).

It can be divided in two parts, 20560 and 342, that added together give a palindrome (20902).

The spelling of 20560342 in words is "twenty million, five hundred sixty thousand, three hundred forty-two".