1670463256 has 64 divisors (see below), whose sum is σ = 3914081280. Its totient is φ = 649313280.

The previous prime is 1670463247. The next prime is 1670463281. The reversal of 1670463256 is 6523640761.

It is a super-2 number, since 2×1670463256² = 5580894979292243072, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282280 + ... + 288136.

It is an arithmetic number, because the mean of its divisors is an integer number (61157520).

Almost surely, 2^1670463256 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 1670463256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1957040640).

1670463256 is an abundant number, since it is smaller than the sum of its proper divisors (2243618024).

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

1670463256 is a wasteful number, since it uses less digits than its factorization.

1670463256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6344 (or 6340 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 40.

The square root of 1670463256 is about 40871.3011292765. The cubic root of 1670463256 is about 1186.5306896474.

The spelling of 1670463256 in words is "one billion, six hundred seventy million, four hundred sixty-three thousand, two hundred fifty-six".