1670642316 has 72 divisors (see below), whose sum is σ = 4854324384. Its totient is φ = 474554880.

The previous prime is 1670642287. The next prime is 1670642341. The reversal of 1670642316 is 6132460761.

It is a happy number.

1670642316 is a `hidden beast` number, since 1 + 6 + 7 + 0 + 642 + 3 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24436 + ... + 62756.

It is an arithmetic number, because the mean of its divisors is an integer number (67421172).

Almost surely, 2^1670642316 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 1670642316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2427162192).

1670642316 is an abundant number, since it is smaller than the sum of its proper divisors (3183682068).

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

1670642316 is a wasteful number, since it uses less digits than its factorization.

1670642316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38511 (or 38506 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 1670642316 is about 40873.4916051957. The cubic root of 1670642316 is about 1186.5730835948.

The spelling of 1670642316 in words is "one billion, six hundred seventy million, six hundred forty-two thousand, three hundred sixteen".