1385070428 has 12 divisors (see below), whose sum is σ = 2770140912. Its totient is φ = 593601600.

The previous prime is 1385070409. The next prime is 1385070433. The reversal of 1385070428 is 8240705831.

1385070428 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 1385070391 and 1385070400.

It is a congruent number.

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, 24733373 + ... + 24733428.

It is an arithmetic number, because the mean of its divisors is an integer number (230845076).

Almost surely, 2^1385070428 is an apocalyptic number.

It is an amenable number.

1385070428 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1385070428 is a wasteful number, since it uses less digits than its factorization.

1385070428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49466812 (or 49466810 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 1385070428 is about 37216.5343362329. The cubic root of 1385070428 is about 1114.6981635881.

The spelling of 1385070428 in words is "one billion, three hundred eighty-five million, seventy thousand, four hundred twenty-eight".