1670388670 has 8 divisors (see below), whose sum is σ = 3006699624. Its totient is φ = 668155464.

The previous prime is 1670388641. The next prime is 1670388683. The reversal of 1670388670 is 768830761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1670388670.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83519424 + ... + 83519443.

It is an arithmetic number, because the mean of its divisors is an integer number (375837453).

Almost surely, 2^1670388670 is an apocalyptic number.

1670388670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1670388670 is a deficient number, since it is larger than the sum of its proper divisors (1336310954).

1670388670 is a wasteful number, since it uses less digits than its factorization.

1670388670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167038874.

The product of its (nonzero) digits is 338688, while the sum is 46.

The square root of 1670388670 is about 40870.3886695490. The cubic root of 1670388670 is about 1186.5130298964.

The spelling of 1670388670 in words is "one billion, six hundred seventy million, three hundred eighty-eight thousand, six hundred seventy".