1385427 has 8 divisors (see below), whose sum is σ = 1852864. Its totient is φ = 920808.

The previous prime is 1385411. The next prime is 1385429. The reversal of 1385427 is 7245831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1385427 - 2⁴ = 1385411 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1385394 and 1385403.

It is not an unprimeable number, because it can be changed into a prime (1385429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1128 + ... + 2010.

It is an arithmetic number, because the mean of its divisors is an integer number (231608).

2^1385427 is an apocalyptic number.

1385427 is a deficient number, since it is larger than the sum of its proper divisors (467437).

1385427 is an equidigital number, since it uses as much as digits as its factorization.

1385427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1409.

The product of its digits is 6720, while the sum is 30.

The square root of 1385427 is about 1177.0416305297. The cubic root of 1385427 is about 111.4793811203.

It can be divided in two parts, 138 and 5427, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 1385427 in words is "one million, three hundred eighty-five thousand, four hundred twenty-seven".