42240276 has 72 divisors (see below), whose sum is σ = 117717600. Its totient is φ = 12688704.

The previous prime is 42240271. The next prime is 42240307. The reversal of 42240276 is 67204224.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42240271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19075 + ... + 21173.

Almost surely, 2^42240276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42240276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58858800).

42240276 is an abundant number, since it is smaller than the sum of its proper divisors (75477324).

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

42240276 is a wasteful number, since it uses less digits than its factorization.

42240276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2165 (or 2160 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 42240276 is about 6499.2519569563. The cubic root of 42240276 is about 348.2642661738.

The spelling of 42240276 in words is "forty-two million, two hundred forty thousand, two hundred seventy-six".