989301642 has 64 divisors (see below), whose sum is σ = 2302325760. Its totient is φ = 277572096.

The previous prime is 989301641. The next prime is 989301647. The reversal of 989301642 is 246103989.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 989301594 and 989301603.

It is not an unprimeable number, because it can be changed into a prime (989301641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 565413 + ... + 567159.

It is an arithmetic number, because the mean of its divisors is an integer number (35973840).

Almost surely, 2^989301642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989301642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151162880).

989301642 is an abundant number, since it is smaller than the sum of its proper divisors (1313024118).

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

989301642 is a wasteful number, since it uses less digits than its factorization.

989301642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1995.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 989301642 is about 31453.1658501970. The cubic root of 989301642 is about 996.4210873311.

The spelling of 989301642 in words is "nine hundred eighty-nine million, three hundred one thousand, six hundred forty-two".