1670857960 has 32 divisors (see below), whose sum is σ = 3763389600. Its totient is φ = 667639360.

The previous prime is 1670857949. The next prime is 1670857961. The reversal of 1670857960 is 697580761.

It is not an unprimeable number, because it can be changed into a prime (1670857961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17331 + ... + 60349.

It is an arithmetic number, because the mean of its divisors is an integer number (117605925).

Almost surely, 2^1670857960 is an apocalyptic number.

1670857960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1670857960 is an abundant number, since it is smaller than the sum of its proper divisors (2092531640).

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

1670857960 is a wasteful number, since it uses less digits than its factorization.

1670857960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44001 (or 43997 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 49.

The square root of 1670857960 is about 40876.1294645176. The cubic root of 1670857960 is about 1186.6241350886.

The spelling of 1670857960 in words is "one billion, six hundred seventy million, eight hundred fifty-seven thousand, nine hundred sixty".