846429660 has 144 divisors (see below), whose sum is σ = 2736822816. Its totient is φ = 211009536.

The previous prime is 846429637. The next prime is 846429691. The reversal of 846429660 is 66924648.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 497932 + ... + 499628.

It is an arithmetic number, because the mean of its divisors is an integer number (19005714).

Almost surely, 2^846429660 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 846429660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1368411408).

846429660 is an abundant number, since it is smaller than the sum of its proper divisors (1890393156).

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

846429660 is a wasteful number, since it uses less digits than its factorization.

846429660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892 (or 1887 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The square root of 846429660 is about 29093.4642144933. The cubic root of 846429660 is about 945.9400740064.

The spelling of 846429660 in words is "eight hundred forty-six million, four hundred twenty-nine thousand, six hundred sixty".