42180260 has 12 divisors (see below), whose sum is σ = 88578588. Its totient is φ = 16872096.

The previous prime is 42180253. The next prime is 42180263. The reversal of 42180260 is 6208124.

It can be written as a sum of positive squares in 2 ways, for example, as 25321024 + 16859236 = 5032^2 + 4106^2 .

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (42180263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1054487 + ... + 1054526.

It is an arithmetic number, because the mean of its divisors is an integer number (7381549).

Almost surely, 2^42180260 is an apocalyptic number.

It is an amenable number.

42180260 is an abundant number, since it is smaller than the sum of its proper divisors (46398328).

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

42180260 is a wasteful number, since it uses less digits than its factorization.

42180260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2109022 (or 2109020 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 42180260 is about 6494.6331690096. The cubic root of 42180260 is about 348.0992472465.

Adding to 42180260 its reverse (6208124), we get a palindrome (48388384).

The spelling of 42180260 in words is "forty-two million, one hundred eighty thousand, two hundred sixty".