1389435 has 16 divisors (see below), whose sum is σ = 2238720. Its totient is φ = 735840.

The previous prime is 1389433. The next prime is 1389439. The reversal of 1389435 is 5349831.

It is not a de Polignac number, because 1389435 - 2¹ = 1389433 is a prime.

1389435 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1389396 and 1389405.

It is not an unprimeable number, because it can be changed into a prime (1389431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2946 + ... + 3384.

It is an arithmetic number, because the mean of its divisors is an integer number (139920).

2^1389435 is an apocalyptic number.

1389435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1389435 is a deficient number, since it is larger than the sum of its proper divisors (849285).

1389435 is a wasteful number, since it uses less digits than its factorization.

1389435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its digits is 12960, while the sum is 33.

The square root of 1389435 is about 1178.7429745284. The cubic root of 1389435 is about 111.5867798217.

The spelling of 1389435 in words is "one million, three hundred eighty-nine thousand, four hundred thirty-five".