42263387 has 4 divisors (see below), whose sum is σ = 43162656. Its totient is φ = 41364120.

The previous prime is 42263383. The next prime is 42263401. The reversal of 42263387 is 78336224.

42263387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42263387 - 2² = 42263383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42263383) 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 3 ways as a sum of consecutive naturals, for example, 449564 + ... + 449657.

It is an arithmetic number, because the mean of its divisors is an integer number (10790664).

Almost surely, 2^42263387 is an apocalyptic number.

42263387 is a gapful number since it is divisible by the number (47) formed by its first and last digit.

42263387 is a deficient number, since it is larger than the sum of its proper divisors (899269).

42263387 is an equidigital number, since it uses as much as digits as its factorization.

42263387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899268.

The product of its digits is 48384, while the sum is 35.

The square root of 42263387 is about 6501.0296876726. The cubic root of 42263387 is about 348.3277700833.

The spelling of 42263387 in words is "forty-two million, two hundred sixty-three thousand, three hundred eighty-seven".