1386333906 has 16 divisors (see below), whose sum is σ = 2773043904. Its totient is φ = 462048624.

The previous prime is 1386333887. The next prime is 1386333911. The reversal of 1386333906 is 6093336831.

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, 61440 + ... + 80916.

It is an arithmetic number, because the mean of its divisors is an integer number (173315244).

Almost surely, 2^1386333906 is an apocalyptic number.

1386333906 is an abundant number, since it is smaller than the sum of its proper divisors (1386709998).

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

1386333906 is a wasteful number, since it uses less digits than its factorization.

1386333906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31345.

The product of its (nonzero) digits is 209952, while the sum is 42.

The square root of 1386333906 is about 37233.5051532890. The cubic root of 1386333906 is about 1115.0370076263.

The spelling of 1386333906 in words is "one billion, three hundred eighty-six million, three hundred thirty-three thousand, nine hundred six".