1386133798 has 16 divisors (see below), whose sum is σ = 2376714240. Its totient is φ = 593936136.

The previous prime is 1386133789. The next prime is 1386133799. The reversal of 1386133798 is 8973316831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1386133799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111163 + ... + 123001.

It is an arithmetic number, because the mean of its divisors is an integer number (148544640).

Almost surely, 2^1386133798 is an apocalyptic number.

1386133798 is a deficient number, since it is larger than the sum of its proper divisors (990580442).

1386133798 is a wasteful number, since it uses less digits than its factorization.

1386133798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20211.

The product of its digits is 653184, while the sum is 49.

The square root of 1386133798 is about 37230.8178529562. The cubic root of 1386133798 is about 1114.9833556740.

The spelling of 1386133798 in words is "one billion, three hundred eighty-six million, one hundred thirty-three thousand, seven hundred ninety-eight".