1385045438 has 16 divisors (see below), whose sum is σ = 2379570144. Its totient is φ = 592289280.

The previous prime is 1385045381. The next prime is 1385045447. The reversal of 1385045438 is 8345405831.

It is a super-2 number, since 2×1385045438² = 3836701730649223688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1385045395 and 1385045404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101843 + ... + 114638.

It is an arithmetic number, because the mean of its divisors is an integer number (148723134).

Almost surely, 2^1385045438 is an apocalyptic number.

1385045438 is a deficient number, since it is larger than the sum of its proper divisors (994524706).

1385045438 is a wasteful number, since it uses less digits than its factorization.

1385045438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216947.

The product of its (nonzero) digits is 230400, while the sum is 41.

The square root of 1385045438 is about 37216.1985968476. The cubic root of 1385045438 is about 1114.6914596030.

The spelling of 1385045438 in words is "one billion, three hundred eighty-five million, forty-five thousand, four hundred thirty-eight".