42918280 has 16 divisors (see below), whose sum is σ = 96566220. Its totient is φ = 17167296.

The previous prime is 42918269. The next prime is 42918307. The reversal of 42918280 is 8281924.

It can be written as a sum of positive squares in 2 ways, for example, as 42068196 + 850084 = 6486^2 + 922^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536439 + ... + 536518.

Almost surely, 2^42918280 is an apocalyptic number.

42918280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42918280 is an abundant number, since it is smaller than the sum of its proper divisors (53647940).

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

42918280 is a wasteful number, since it uses less digits than its factorization.

42918280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1072968 (or 1072964 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 42918280 is about 6551.2044694087. The cubic root of 42918280 is about 350.1177291026.

The spelling of 42918280 in words is "forty-two million, nine hundred eighteen thousand, two hundred eighty".