989436462 has 64 divisors (see below), whose sum is σ = 2336325120. Its totient is φ = 273442176.

The previous prime is 989436449. The next prime is 989436467. The reversal of 989436462 is 264634989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989436467) 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, 276388 + ... + 279944.

It is an arithmetic number, because the mean of its divisors is an integer number (36505080).

Almost surely, 2^989436462 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 989436462, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1168162560).

989436462 is an abundant number, since it is smaller than the sum of its proper divisors (1346888658).

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

989436462 is a wasteful number, since it uses less digits than its factorization.

989436462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3785.

The product of its digits is 2239488, while the sum is 51.

The square root of 989436462 is about 31455.3089636710. The cubic root of 989436462 is about 996.4663486829.

The spelling of 989436462 in words is "nine hundred eighty-nine million, four hundred thirty-six thousand, four hundred sixty-two".