42234461 has 2 divisors, whose sum is σ = 42234462. Its totient is φ = 42234460.

The previous prime is 42234449. The next prime is 42234487. The reversal of 42234461 is 16443224.

It is an a-pointer prime, because the next prime (42234487) can be obtained adding 42234461 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39062500 + 3171961 = 6250^2 + 1781^2 .

It is a cyclic number.

It is not a de Polignac number, because 42234461 - 2²² = 38040157 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42234461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42234061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21117230 + 21117231.

It is an arithmetic number, because the mean of its divisors is an integer number (21117231).

Almost surely, 2^42234461 is an apocalyptic number.

It is an amenable number.

42234461 is a deficient number, since it is larger than the sum of its proper divisors (1).

42234461 is an equidigital number, since it uses as much as digits as its factorization.

42234461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4608, while the sum is 26.

The square root of 42234461 is about 6498.8045823828. The cubic root of 42234461 is about 348.2482841945.

Adding to 42234461 its reverse (16443224), we get a palindrome (58677685).

The spelling of 42234461 in words is "forty-two million, two hundred thirty-four thousand, four hundred sixty-one".