42488240 has 20 divisors (see below), whose sum is σ = 98785344. Its totient is φ = 16995264.

The previous prime is 42488239. The next prime is 42488267. The reversal of 42488240 is 4288424.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 42488197 and 42488206.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 265472 + ... + 265631.

Almost surely, 2^42488240 is an apocalyptic number.

42488240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42488240 is an abundant number, since it is smaller than the sum of its proper divisors (56297104).

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

42488240 is a wasteful number, since it uses less digits than its factorization.

42488240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531116 (or 531110 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 32.

The square root of 42488240 is about 6518.3003919734. The cubic root of 42488240 is about 348.9444114166.

The spelling of 42488240 in words is "forty-two million, four hundred eighty-eight thousand, two hundred forty".