1670785142 has 16 divisors (see below), whose sum is σ = 2701314672. Its totient is φ = 770459040.

The previous prime is 1670785099. The next prime is 1670785169. The reversal of 1670785142 is 2415870761.

It is a self number, because there is not a number n which added to its sum of digits gives 1670785142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3008 + ... + 57884.

It is an arithmetic number, because the mean of its divisors is an integer number (168832167).

Almost surely, 2^1670785142 is an apocalyptic number.

1670785142 is a deficient number, since it is larger than the sum of its proper divisors (1030529530).

1670785142 is a wasteful number, since it uses less digits than its factorization.

1670785142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56063.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 1670785142 is about 40875.2387393640. The cubic root of 1670785142 is about 1186.6068966690.

The spelling of 1670785142 in words is "one billion, six hundred seventy million, seven hundred eighty-five thousand, one hundred forty-two".