1384520 has 16 divisors (see below), whose sum is σ = 3115260. Its totient is φ = 553792.

The previous prime is 1384507. The next prime is 1384561. The reversal of 1384520 is 254831.

It can be written as a sum of positive squares in 2 ways, for example, as 1359556 + 24964 = 1166^2 + 158^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17267 + ... + 17346.

2^1384520 is an apocalyptic number.

1384520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1384520 is an abundant number, since it is smaller than the sum of its proper divisors (1730740).

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

1384520 is a wasteful number, since it uses less digits than its factorization.

1384520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34624 (or 34620 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1384520 is about 1176.6562794631. The cubic root of 1384520 is about 111.4550483402.

The spelling of 1384520 in words is "one million, three hundred eighty-four thousand, five hundred twenty".