1670021674 has 8 divisors (see below), whose sum is σ = 2613947040. Its totient is φ = 798705996.

The previous prime is 1670021641. The next prime is 1670021687. The reversal of 1670021674 is 4761200761.

It is a happy number.

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

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, 18152364 + ... + 18152455.

It is an arithmetic number, because the mean of its divisors is an integer number (326743380).

Almost surely, 2^1670021674 is an apocalyptic number.

1670021674 is a deficient number, since it is larger than the sum of its proper divisors (943925366).

1670021674 is a wasteful number, since it uses less digits than its factorization.

1670021674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36304844.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1670021674 is about 40865.8986686944. The cubic root of 1670021674 is about 1186.4261284788.

The spelling of 1670021674 in words is "one billion, six hundred seventy million, twenty-one thousand, six hundred seventy-four".