42889672 has 32 divisors (see below), whose sum is σ = 92171520. Its totient is φ = 18328320.

The previous prime is 42889663. The next prime is 42889673. The reversal of 42889672 is 27698824.

It is not an unprimeable number, because it can be changed into a prime (42889673) 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, 23248 + ... + 25024.

It is an arithmetic number, because the mean of its divisors is an integer number (2880360).

Almost surely, 2^42889672 is an apocalyptic number.

It is an amenable number.

42889672 is an abundant number, since it is smaller than the sum of its proper divisors (49281848).

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

42889672 is a wasteful number, since it uses less digits than its factorization.

42889672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221 (or 2217 counting only the distinct ones).

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

The square root of 42889672 is about 6549.0206901490. The cubic root of 42889672 is about 350.0399192564.

It can be divided in two parts, 428 and 89672, that added together give a triangular number (90100 = T₄₂₄).

The spelling of 42889672 in words is "forty-two million, eight hundred eighty-nine thousand, six hundred seventy-two".