1670637852 has 96 divisors (see below), whose sum is σ = 4910035200. Its totient is φ = 486979776.

The previous prime is 1670637851. The next prime is 1670637893. The reversal of 1670637852 is 2587360761.

1670637852 is a `hidden beast` number, since 1 + 6 + 7 + 0 + 637 + 8 + 5 + 2 = 666.

1670637852 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1670637798 and 1670637807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670637851) 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, 4638 + ... + 57989.

It is an arithmetic number, because the mean of its divisors is an integer number (51146200).

Almost surely, 2^1670637852 is an apocalyptic number.

1670637852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1670637852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2455017600).

1670637852 is an abundant number, since it is smaller than the sum of its proper divisors (3239397348).

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

1670637852 is a wasteful number, since it uses less digits than its factorization.

1670637852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62672 (or 62664 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The square root of 1670637852 is about 40873.4369976394. The cubic root of 1670637852 is about 1186.5720267424.

The spelling of 1670637852 in words is "one billion, six hundred seventy million, six hundred thirty-seven thousand, eight hundred fifty-two".