20341242 has 24 divisors (see below), whose sum is σ = 44247060. Its totient is φ = 6753600.

The previous prime is 20341213. The next prime is 20341247. The reversal of 20341242 is 24214302.

It can be written as a sum of positive squares in 2 ways, for example, as 15046641 + 5294601 = 3879^2 + 2301^2 .

It is a super-2 number, since 2×20341242² = 827532252205128, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (20341247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2742 + ... + 6942.

Almost surely, 2^20341242 is an apocalyptic number.

20341242 is an abundant number, since it is smaller than the sum of its proper divisors (23905818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20341242 is a wasteful number, since it uses less digits than its factorization.

20341242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478 (or 4475 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20341242 is about 4510.1266057617. The cubic root of 20341242 is about 272.9768526846.

Adding to 20341242 its reverse (24214302), we get a palindrome (44555544).

The spelling of 20341242 in words is "twenty million, three hundred forty-one thousand, two hundred forty-two".