20356042 has 8 divisors (see below), whose sum is σ = 34896096. Its totient is φ = 8724012.

The previous prime is 20356033. The next prime is 20356043. The reversal of 20356042 is 24065302.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (20356043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726988 + ... + 727015.

It is an arithmetic number, because the mean of its divisors is an integer number (4362012).

Almost surely, 2^20356042 is an apocalyptic number.

20356042 is a deficient number, since it is larger than the sum of its proper divisors (14540054).

20356042 is a wasteful number, since it uses less digits than its factorization.

20356042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1454012.

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

The square root of 20356042 is about 4511.7670595898. The cubic root of 20356042 is about 273.0430413337.

The spelling of 20356042 in words is "twenty million, three hundred fifty-six thousand, forty-two".