4042051420 has 48 divisors (see below), whose sum is σ = 9485846496. Its totient is φ = 1433984000.

The previous prime is 4042051417. The next prime is 4042051423. The reversal of 4042051420 is 241502404.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (4042051417) and next prime (4042051423).

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 4042051391 and 4042051400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042051423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215041 + ... + 233080.

It is an arithmetic number, because the mean of its divisors is an integer number (197621802).

Almost surely, 2^4042051420 is an apocalyptic number.

It is an amenable number.

4042051420 is an abundant number, since it is smaller than the sum of its proper divisors (5443795076).

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

4042051420 is a wasteful number, since it uses less digits than its factorization.

4042051420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448182 (or 448180 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 4042051420 is about 63577.1296929957. The cubic root of 4042051420 is about 1592.9443774158.

Adding to 4042051420 its reverse (241502404), we get a palindrome (4283553824).

The spelling of 4042051420 in words is "four billion, forty-two million, fifty-one thousand, four hundred twenty".