1385299986 has 16 divisors (see below), whose sum is σ = 3166400064. Its totient is φ = 395799984.

The previous prime is 1385299969. The next prime is 1385300011. The reversal of 1385299986 is 6899925831.

It is a happy 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, 16491625 + ... + 16491708.

It is an arithmetic number, because the mean of its divisors is an integer number (197900004).

Almost surely, 2^1385299986 is an apocalyptic number.

1385299986 is an abundant number, since it is smaller than the sum of its proper divisors (1781100078).

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

1385299986 is a wasteful number, since it uses less digits than its factorization.

1385299986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32983345.

The product of its digits is 8398080, while the sum is 60.

The square root of 1385299986 is about 37219.6182946575. The cubic root of 1385299986 is about 1114.7597425857.

The spelling of 1385299986 in words is "one billion, three hundred eighty-five million, two hundred ninety-nine thousand, nine hundred eighty-six".