42263140 has 24 divisors (see below), whose sum is σ = 89220600. Its totient is φ = 16816128.

The previous prime is 42263119. The next prime is 42263149. The reversal of 42263140 is 4136224.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 350464 + 41912676 = 592^2 + 6474^2 .

It is not an unprimeable number, because it can be changed into a prime (42263149) 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, 1615 + ... + 9334.

It is an arithmetic number, because the mean of its divisors is an integer number (3717525).

Almost surely, 2^42263140 is an apocalyptic number.

It is an amenable number.

42263140 is an abundant number, since it is smaller than the sum of its proper divisors (46957460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42263140 is a wasteful number, since it uses less digits than its factorization.

42263140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11151 (or 11149 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 42263140 is about 6501.0106906542. The cubic root of 42263140 is about 348.3270915044.

Adding to 42263140 its reverse (4136224), we get a palindrome (46399364).

The spelling of 42263140 in words is "forty-two million, two hundred sixty-three thousand, one hundred forty".