1385420744 has 16 divisors (see below), whose sum is σ = 2598698700. Its totient is φ = 692434432.

The previous prime is 1385420731. The next prime is 1385420753. The reversal of 1385420744 is 4470245831.

It can be written as a sum of positive squares in 2 ways, for example, as 1286656900 + 98763844 = 35870^2 + 9938^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1385420698 and 1385420707.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12317 + ... + 54060.

Almost surely, 2^1385420744 is an apocalyptic number.

It is an amenable number.

1385420744 is a deficient number, since it is larger than the sum of its proper divisors (1213277956).

1385420744 is a wasteful number, since it uses less digits than its factorization.

1385420744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68992 (or 68988 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The square root of 1385420744 is about 37221.2404951796. The cubic root of 1385420744 is about 1114.7921332224.

The spelling of 1385420744 in words is "one billion, three hundred eighty-five million, four hundred twenty thousand, seven hundred forty-four".