42263739 has 12 divisors (see below), whose sum is σ = 69768816. Its totient is φ = 24150672.

The previous prime is 42263729. The next prime is 42263761. The reversal of 42263739 is 93736224.

It is a happy number.

42263739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42263739 - 2⁴ = 42263723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42263729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 335364 + ... + 335489.

It is an arithmetic number, because the mean of its divisors is an integer number (5814068).

Almost surely, 2^42263739 is an apocalyptic number.

42263739 is a deficient number, since it is larger than the sum of its proper divisors (27505077).

42263739 is a wasteful number, since it uses less digits than its factorization.

42263739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670866 (or 670863 counting only the distinct ones).

The product of its digits is 54432, while the sum is 36.

The square root of 42263739 is about 6501.0567602506. The cubic root of 42263739 is about 348.3287371223.

The spelling of 42263739 in words is "forty-two million, two hundred sixty-three thousand, seven hundred thirty-nine".