20363542 has 8 divisors (see below), whose sum is σ = 31370976. Its totient is φ = 9906552.

The previous prime is 20363537. The next prime is 20363587. The reversal of 20363542 is 24536302.

It is a happy number.

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

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 3 ways as a sum of consecutive naturals, for example, 137518 + ... + 137665.

It is an arithmetic number, because the mean of its divisors is an integer number (3921372).

Almost surely, 2^20363542 is an apocalyptic number.

20363542 is a deficient number, since it is larger than the sum of its proper divisors (11007434).

20363542 is a wasteful number, since it uses less digits than its factorization.

20363542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275222.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 20363542 is about 4512.5981429771. The cubic root of 20363542 is about 273.0765706311.

Adding to 20363542 its reverse (24536302), we get a palindrome (44899844).

The spelling of 20363542 in words is "twenty million, three hundred sixty-three thousand, five hundred forty-two".