1385443710 has 256 divisors, whose sum is σ = 4557772800. Its totient is φ = 292377600.

The previous prime is 1385443699. The next prime is 1385443739. The reversal of 1385443710 is 173445831.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1471840 + ... + 1472780.

It is an arithmetic number, because the mean of its divisors is an integer number (17803800).

Almost surely, 2^1385443710 is an apocalyptic number.

1385443710 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1385443710, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2278886400).

1385443710 is an abundant number, since it is smaller than the sum of its proper divisors (3172329090).

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

1385443710 is a wasteful number, since it uses less digits than its factorization.

1385443710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024 (or 1018 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 1385443710 is about 37221.5490005454. The cubic root of 1385443710 is about 1114.7982931260.

The spelling of 1385443710 in words is "one billion, three hundred eighty-five million, four hundred forty-three thousand, seven hundred ten".