42229739 has 2 divisors, whose sum is σ = 42229740. Its totient is φ = 42229738.

The previous prime is 42229709. The next prime is 42229769. The reversal of 42229739 is 93792224.

It is a balanced prime because it is at equal distance from previous prime (42229709) and next prime (42229769).

It is a cyclic number.

It is not a de Polignac number, because 42229739 - 2¹² = 42225643 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (42229709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21114869 + 21114870.

It is an arithmetic number, because the mean of its divisors is an integer number (21114870).

Almost surely, 2^42229739 is an apocalyptic number.

42229739 is a deficient number, since it is larger than the sum of its proper divisors (1).

42229739 is an equidigital number, since it uses as much as digits as its factorization.

42229739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 38.

The square root of 42229739 is about 6498.4412746443. The cubic root of 42229739 is about 348.2353051434.

The spelling of 42229739 in words is "forty-two million, two hundred twenty-nine thousand, seven hundred thirty-nine".