42243070 has 16 divisors (see below), whose sum is σ = 76137408. Its totient is φ = 16875040.

The previous prime is 42243041. The next prime is 42243077. The reversal of 42243070 is 7034224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42243077) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6792 + ... + 11428.

It is an arithmetic number, because the mean of its divisors is an integer number (4758588).

Almost surely, 2^42243070 is an apocalyptic number.

42243070 is a deficient number, since it is larger than the sum of its proper divisors (33894338).

42243070 is a wasteful number, since it uses less digits than its factorization.

42243070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555.

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 42243070 is about 6499.4669012158. The cubic root of 42243070 is about 348.2719446977.

Adding to 42243070 its reverse (7034224), we get a palindrome (49277294).

It can be divided in two parts, 422430 and 70, that added together give a square (422500 = 650²).

The spelling of 42243070 in words is "forty-two million, two hundred forty-three thousand, seventy".