42002210420 has 48 divisors (see below), whose sum is σ = 94250051280. Its totient is φ = 15667513344.

The previous prime is 42002210399. The next prime is 42002210489. The reversal of 42002210420 is 2401220024.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1523184784 + 40479025636 = 39028^2 + 201194^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529619 + ... + 603738.

It is an arithmetic number, because the mean of its divisors is an integer number (1963542735).

Almost surely, 2^42002210420 is an apocalyptic number.

It is an amenable number.

42002210420 is an abundant number, since it is smaller than the sum of its proper divisors (52247840860).

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

42002210420 is a wasteful number, since it uses less digits than its factorization.

42002210420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1133492 (or 1133490 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

Adding to 42002210420 its reverse (2401220024), we get a palindrome (44403430444).

The spelling of 42002210420 in words is "forty-two billion, two million, two hundred ten thousand, four hundred twenty".