3042420561 has 16 divisors (see below), whose sum is σ = 4508644800. Its totient is φ = 2027670624.

The previous prime is 3042420551. The next prime is 3042420583. The reversal of 3042420561 is 1650242403.

3042420561 is a `hidden beast` number, since 30 + 424 + 205 + 6 + 1 = 666.

It is not a de Polignac number, because 3042420561 - 2¹¹ = 3042418513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3042420551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85885 + ... + 116021.

It is an arithmetic number, because the mean of its divisors is an integer number (281790300).

Almost surely, 2^3042420561 is an apocalyptic number.

It is an amenable number.

3042420561 is a deficient number, since it is larger than the sum of its proper divisors (1466224239).

3042420561 is a wasteful number, since it uses less digits than its factorization.

3042420561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33885 (or 33879 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 3042420561 is about 55158.1413845681. The cubic root of 3042420561 is about 1449.0156713795.

Adding to 3042420561 its reverse (1650242403), we get a palindrome (4692662964).

The spelling of 3042420561 in words is "three billion, forty-two million, four hundred twenty thousand, five hundred sixty-one".