1386398142 has 24 divisors (see below), whose sum is σ = 3004823016. Its totient is φ = 461984976.

The previous prime is 1386398063. The next prime is 1386398183. The reversal of 1386398142 is 2418936831.

1386398142 is a `hidden beast` number, since 1 + 3 + 8 + 639 + 8 + 1 + 4 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55713 + ... + 76659.

It is an arithmetic number, because the mean of its divisors is an integer number (125200959).

Almost surely, 2^1386398142 is an apocalyptic number.

1386398142 is an abundant number, since it is smaller than the sum of its proper divisors (1618424874).

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

1386398142 is a wasteful number, since it uses less digits than its factorization.

1386398142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24632 (or 24629 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 1386398142 is about 37234.3677534613. The cubic root of 1386398142 is about 1115.0542291655.

The spelling of 1386398142 in words is "one billion, three hundred eighty-six million, three hundred ninety-eight thousand, one hundred forty-two".