20341849542 has 32 divisors (see below), whose sum is σ = 46558305792. Its totient is φ = 5804125824.

The previous prime is 20341849531. The next prime is 20341849547. The reversal of 20341849542 is 24594814302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 20341849494 and 20341849503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20341849547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294723 + ... + 357134.

It is an arithmetic number, because the mean of its divisors is an integer number (1454947056).

Almost surely, 2^20341849542 is an apocalyptic number.

20341849542 is an abundant number, since it is smaller than the sum of its proper divisors (26216456250).

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

20341849542 is a wasteful number, since it uses less digits than its factorization.

20341849542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652612.

The product of its (nonzero) digits is 276480, while the sum is 42.

The spelling of 20341849542 in words is "twenty billion, three hundred forty-one million, eight hundred forty-nine thousand, five hundred forty-two".