20342030 has 16 divisors (see below), whose sum is σ = 38769840. Its totient is φ = 7658112.

The previous prime is 20342029. The next prime is 20342039. The reversal of 20342030 is 3024302.

It is a junction number, because it is equal to n+sod(n) for n = 20341996 and 20342014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20342039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59660 + ... + 59999.

It is an arithmetic number, because the mean of its divisors is an integer number (2423115).

Almost surely, 2^20342030 is an apocalyptic number.

20342030 is a deficient number, since it is larger than the sum of its proper divisors (18427810).

20342030 is a wasteful number, since it uses less digits than its factorization.

20342030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119683.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20342030 is about 4510.2139638824. The cubic root of 20342030 is about 272.9803775920.

Adding to 20342030 its reverse (3024302), we get a palindrome (23366332).

The spelling of 20342030 in words is "twenty million, three hundred forty-two thousand, thirty".