1385475 has 72 divisors (see below), whose sum is σ = 2968560. Its totient is φ = 564480.

The previous prime is 1385471. The next prime is 1385477. The reversal of 1385475 is 5745831.

It is not a de Polignac number, because 1385475 - 2² = 1385471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1385471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 47761 + ... + 47789.

It is an arithmetic number, because the mean of its divisors is an integer number (41230).

2^1385475 is an apocalyptic number.

1385475 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1385475 is an abundant number, since it is smaller than the sum of its proper divisors (1583085).

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

1385475 is a wasteful number, since it uses less digits than its factorization.

1385475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69 (or 57 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 1385475 is about 1177.0620204560. The cubic root of 1385475 is about 111.4806685570.

The spelling of 1385475 in words is "one million, three hundred eighty-five thousand, four hundred seventy-five".