1383450 has 48 divisors (see below), whose sum is σ = 3589056. Its totient is φ = 352000.

The previous prime is 1383449. The next prime is 1383451. The reversal of 1383450 is 543831.

It is an interprime number because it is at equal distance from previous prime (1383449) and next prime (1383451).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1383450.

It is not an unprimeable number, because it can be changed into a prime (1383451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3250 + ... + 3650.

It is an arithmetic number, because the mean of its divisors is an integer number (74772).

2^1383450 is an apocalyptic number.

1383450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1383450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1794528).

1383450 is an abundant number, since it is smaller than the sum of its proper divisors (2205606).

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

1383450 is a wasteful number, since it uses less digits than its factorization.

1383450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 439 (or 434 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1383450 is about 1176.2015133471. The cubic root of 1383450 is about 111.4263289677.

It can be divided in two parts, 138 and 3450, that multiplied together give a square (476100 = 690²).

The spelling of 1383450 in words is "one million, three hundred eighty-three thousand, four hundred fifty".