1383520 has 24 divisors (see below), whose sum is σ = 3268944. Its totient is φ = 553344.

The previous prime is 1383517. The next prime is 1383521. The reversal of 1383520 is 253831.

It is a junction number, because it is equal to n+sod(n) for n = 1383491 and 1383500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4164 + ... + 4483.

It is an arithmetic number, because the mean of its divisors is an integer number (136206).

2^1383520 is an apocalyptic number.

1383520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1383520 is an abundant number, since it is smaller than the sum of its proper divisors (1885424).

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

1383520 is an equidigital number, since it uses as much as digits as its factorization.

1383520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8662 (or 8654 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1383520 is about 1176.2312697765. The cubic root of 1383520 is about 111.4282082578.

The spelling of 1383520 in words is "one million, three hundred eighty-three thousand, five hundred twenty".