42388667 has 8 divisors (see below), whose sum is σ = 44946576. Its totient is φ = 39837952.

The previous prime is 42388649. The next prime is 42388679. The reversal of 42388667 is 76688324.

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 42388667 - 2¹² = 42384571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42388637) 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, 14783 + ... + 17415.

It is an arithmetic number, because the mean of its divisors is an integer number (5618322).

Almost surely, 2^42388667 is an apocalyptic number.

42388667 is a deficient number, since it is larger than the sum of its proper divisors (2557909).

42388667 is a wasteful number, since it uses less digits than its factorization.

42388667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3597.

The product of its digits is 387072, while the sum is 44.

The square root of 42388667 is about 6510.6579544621. The cubic root of 42388667 is about 348.6716095013.

The spelling of 42388667 in words is "forty-two million, three hundred eighty-eight thousand, six hundred sixty-seven".