42662140 has 24 divisors (see below), whose sum is σ = 91777392. Its totient is φ = 16648320.

The previous prime is 42662131. The next prime is 42662141. The reversal of 42662140 is 4126624.

42662140 = 1000² + 1001² + ... + 1040².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42662141) 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, 25194 + ... + 26833.

It is an arithmetic number, because the mean of its divisors is an integer number (3824058).

Almost surely, 2^42662140 is an apocalyptic number.

It is an amenable number.

42662140 is an abundant number, since it is smaller than the sum of its proper divisors (49115252).

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

42662140 is a wasteful number, since it uses less digits than its factorization.

42662140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52077 (or 52075 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 42662140 is about 6531.6261374944. The cubic root of 42662140 is about 349.4198279338.

Adding to 42662140 its reverse (4126624), we get a palindrome (46788764).

The spelling of 42662140 in words is "forty-two million, six hundred sixty-two thousand, one hundred forty".