1385396670 has 64 divisors (see below), whose sum is σ = 3804166656. Its totient is φ = 316310400.

The previous prime is 1385396669. The next prime is 1385396687. The reversal of 1385396670 is 766935831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 217572 + ... + 223848.

It is an arithmetic number, because the mean of its divisors is an integer number (59440104).

Almost surely, 2^1385396670 is an apocalyptic number.

1385396670 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1385396670 is an abundant number, since it is smaller than the sum of its proper divisors (2418769986).

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

1385396670 is a wasteful number, since it uses less digits than its factorization.

1385396670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7345.

The product of its (nonzero) digits is 816480, while the sum is 48.

The square root of 1385396670 is about 37220.9171031559. The cubic root of 1385396670 is about 1114.7856760597.

The spelling of 1385396670 in words is "one billion, three hundred eighty-five million, three hundred ninety-six thousand, six hundred seventy".