1384425 has 48 divisors (see below), whose sum is σ = 2916480. Its totient is φ = 630720.

The previous prime is 1384403. The next prime is 1384433. The reversal of 1384425 is 5244831.

It is not a de Polignac number, because 1384425 - 2⁹ = 1383913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 4579 + ... + 4871.

It is an arithmetic number, because the mean of its divisors is an integer number (60760).

2^1384425 is an apocalyptic number.

1384425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1384425 is an abundant number, since it is smaller than the sum of its proper divisors (1532055).

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

1384425 is a wasteful number, since it uses less digits than its factorization.

1384425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319 (or 308 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1384425 is about 1176.6159101423. The cubic root of 1384425 is about 111.4524990881.

The spelling of 1384425 in words is "one million, three hundred eighty-four thousand, four hundred twenty-five".