989438342 has 16 divisors (see below), whose sum is σ = 1519913472. Its totient is φ = 482819400.

The previous prime is 989438339. The next prime is 989438347. The reversal of 989438342 is 243834989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989438347) 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, 120467 + ... + 128417.

It is an arithmetic number, because the mean of its divisors is an integer number (94994592).

Almost surely, 2^989438342 is an apocalyptic number.

989438342 is a deficient number, since it is larger than the sum of its proper divisors (530475130).

989438342 is a wasteful number, since it uses less digits than its factorization.

989438342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9443.

The product of its digits is 1492992, while the sum is 50.

The square root of 989438342 is about 31455.3388473245. The cubic root of 989438342 is about 996.4669798016.

The spelling of 989438342 in words is "nine hundred eighty-nine million, four hundred thirty-eight thousand, three hundred forty-two".