1385025075 has 120 divisors (see below), whose sum is σ = 2952787200. Its totient is φ = 628689600.

The previous prime is 1385025049. The next prime is 1385025079. The reversal of 1385025075 is 5705205831.

1385025075 is a `hidden beast` number, since 1 + 38 + 502 + 50 + 75 = 666.

It is not a de Polignac number, because 1385025075 - 2⁸ = 1385024819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1385025079) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2820580 + ... + 2821070.

It is an arithmetic number, because the mean of its divisors is an integer number (24606560).

Almost surely, 2^1385025075 is an apocalyptic number.

1385025075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1385025075 is an abundant number, since it is smaller than the sum of its proper divisors (1567762125).

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

1385025075 is a wasteful number, since it uses less digits than its factorization.

1385025075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 719 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 42000, while the sum is 36.

The square root of 1385025075 is about 37215.9250187336. The cubic root of 1385025075 is about 1114.6859968283.

The spelling of 1385025075 in words is "one billion, three hundred eighty-five million, twenty-five thousand, seventy-five".