42283481 has 2 divisors, whose sum is σ = 42283482. Its totient is φ = 42283480.

The previous prime is 42283477. The next prime is 42283487. The reversal of 42283481 is 18438224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37699600 + 4583881 = 6140^2 + 2141^2 .

It is a cyclic number.

It is not a de Polignac number, because 42283481 - 2² = 42283477 is a prime.

It is a super-2 number, since 2×42283481² = 3575785530954722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42283487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21141740 + 21141741.

It is an arithmetic number, because the mean of its divisors is an integer number (21141741).

Almost surely, 2^42283481 is an apocalyptic number.

It is an amenable number.

42283481 is a deficient number, since it is larger than the sum of its proper divisors (1).

42283481 is an equidigital number, since it uses as much as digits as its factorization.

42283481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12288, while the sum is 32.

The square root of 42283481 is about 6502.5749515096. The cubic root of 42283481 is about 348.3829651330.

The spelling of 42283481 in words is "forty-two million, two hundred eighty-three thousand, four hundred eighty-one".