42889618 has 16 divisors (see below), whose sum is σ = 67493376. Its totient is φ = 20401920.

The previous prime is 42889597. The next prime is 42889663. The reversal of 42889618 is 81698824.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a plaindrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6463 + ... + 11293.

It is an arithmetic number, because the mean of its divisors is an integer number (4218336).

Almost surely, 2^42889618 is an apocalyptic number.

42889618 is a deficient number, since it is larger than the sum of its proper divisors (24603758).

42889618 is a wasteful number, since it uses less digits than its factorization.

42889618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049.

The product of its digits is 221184, while the sum is 46.

The square root of 42889618 is about 6549.0165673939. The cubic root of 42889618 is about 350.0397723510.

The spelling of 42889618 in words is "forty-two million, eight hundred eighty-nine thousand, six hundred eighteen".