42268987 has 8 divisors (see below), whose sum is σ = 44875296. Its totient is φ = 39676032.

The previous prime is 42268973. The next prime is 42268999. The reversal of 42268987 is 78986224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42268987 - 2¹⁵ = 42236219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42268907) 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, 3618 + ... + 9880.

It is an arithmetic number, because the mean of its divisors is an integer number (5609412).

Almost surely, 2^42268987 is an apocalyptic number.

42268987 is a deficient number, since it is larger than the sum of its proper divisors (2606309).

42268987 is a wasteful number, since it uses less digits than its factorization.

42268987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6677.

The product of its digits is 387072, while the sum is 46.

The square root of 42268987 is about 6501.4603744082. The cubic root of 42268987 is about 348.3431541584.

The spelling of 42268987 in words is "forty-two million, two hundred sixty-eight thousand, nine hundred eighty-seven".