2420018947842 has 16 divisors (see below), whose sum is σ = 4887959064192. Its totient is φ = 798686121200.

The previous prime is 2420018947789. The next prime is 2420018947849. The reversal of 2420018947842 is 2487498100242.

It is a happy number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (2420018947849) 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, 1996714698 + ... + 1996715909.

It is an arithmetic number, because the mean of its divisors is an integer number (305497441512).

Almost surely, 2^{2420018947842} is an apocalyptic number.

2420018947842 is an abundant number, since it is smaller than the sum of its proper divisors (2467940116350).

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

2420018947842 is a wasteful number, since it uses less digits than its factorization.

2420018947842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3993430713.

The product of its (nonzero) digits is 2064384, while the sum is 51.

The spelling of 2420018947842 in words is "two trillion, four hundred twenty billion, eighteen million, nine hundred forty-seven thousand, eight hundred forty-two".