20452342 has 16 divisors (see below), whose sum is σ = 31628160. Its totient is φ = 9911808.

The previous prime is 20452307. The next prime is 20452357. The reversal of 20452342 is 24325402.

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, 35158 + ... + 35734.

It is an arithmetic number, because the mean of its divisors is an integer number (1976760).

Almost surely, 2^20452342 is an apocalyptic number.

20452342 is a deficient number, since it is larger than the sum of its proper divisors (11175818).

20452342 is a wasteful number, since it uses less digits than its factorization.

20452342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 20452342 is about 4522.4265610400. The cubic root of 20452342 is about 273.4729331845.

Adding to 20452342 its reverse (24325402), we get a palindrome (44777744).

The spelling of 20452342 in words is "twenty million, four hundred fifty-two thousand, three hundred forty-two".