42247526 has 16 divisors (see below), whose sum is σ = 66970800. Its totient is φ = 19932768.

The previous prime is 42247511. The next prime is 42247547. The reversal of 42247526 is 62574224.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42247492 and 42247501.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8156 + ... + 12288.

It is an arithmetic number, because the mean of its divisors is an integer number (4185675).

Almost surely, 2^42247526 is an apocalyptic number.

42247526 is a deficient number, since it is larger than the sum of its proper divisors (24723274).

42247526 is a wasteful number, since it uses less digits than its factorization.

42247526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4423.

The product of its digits is 26880, while the sum is 32.

The square root of 42247526 is about 6499.8096895217. The cubic root of 42247526 is about 348.2841900610.

The spelling of 42247526 in words is "forty-two million, two hundred forty-seven thousand, five hundred twenty-six".