42948889 has 4 divisors (see below), whose sum is σ = 44816256. Its totient is φ = 41081524.

The previous prime is 42948887. The next prime is 42948901. The reversal of 42948889 is 98884924.

42948889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42948889 - 2¹ = 42948887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42948887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 933649 + ... + 933694.

It is an arithmetic number, because the mean of its divisors is an integer number (11204064).

Almost surely, 2^42948889 is an apocalyptic number.

It is an amenable number.

42948889 is a deficient number, since it is larger than the sum of its proper divisors (1867367).

42948889 is a wasteful number, since it uses less digits than its factorization.

42948889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1867366.

The product of its digits is 1327104, while the sum is 52.

The square root of 42948889 is about 6553.5401883257. The cubic root of 42948889 is about 350.2009431152.

The spelling of 42948889 in words is "forty-two million, nine hundred forty-eight thousand, eight hundred eighty-nine".