1670393912 has 32 divisors (see below), whose sum is σ = 3489419520. Its totient is φ = 743113440.

The previous prime is 1670393909. The next prime is 1670393917. The reversal of 1670393912 is 2193930761.

It is a self number, because there is not a number n which added to its sum of digits gives 1670393912.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1670393917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197798 + ... + 206069.

It is an arithmetic number, because the mean of its divisors is an integer number (109044360).

Almost surely, 2^1670393912 is an apocalyptic number.

It is an amenable number.

1670393912 is an abundant number, since it is smaller than the sum of its proper divisors (1819025608).

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

1670393912 is a wasteful number, since it uses less digits than its factorization.

1670393912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403931 (or 403927 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 1670393912 is about 40870.4527990577. The cubic root of 1670393912 is about 1186.5142710636.

The spelling of 1670393912 in words is "one billion, six hundred seventy million, three hundred ninety-three thousand, nine hundred twelve".