1385691654 has 16 divisors (see below), whose sum is σ = 2795910192. Its totient is φ = 457809408.

The previous prime is 1385691613. The next prime is 1385691667. The reversal of 1385691654 is 4561965831.

It is a congruent 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, 1021219 + ... + 1022574.

It is an arithmetic number, because the mean of its divisors is an integer number (174744387).

Almost surely, 2^1385691654 is an apocalyptic number.

1385691654 is an abundant number, since it is smaller than the sum of its proper divisors (1410218538).

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

1385691654 is a wasteful number, since it uses less digits than its factorization.

1385691654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043911.

The product of its digits is 777600, while the sum is 48.

The square root of 1385691654 is about 37224.8795028271. The cubic root of 1385691654 is about 1114.8647919328.

The spelling of 1385691654 in words is "one billion, three hundred eighty-five million, six hundred ninety-one thousand, six hundred fifty-four".