1383990 has 16 divisors (see below), whose sum is σ = 3321648. Its totient is φ = 369056.

The previous prime is 1383983. The next prime is 1384013. The reversal of 1383990 is 993831.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23037 + ... + 23096.

It is an arithmetic number, because the mean of its divisors is an integer number (207603).

2^1383990 is an apocalyptic number.

1383990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1383990 is an abundant number, since it is smaller than the sum of its proper divisors (1937658).

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

1383990 is a wasteful number, since it uses less digits than its factorization.

1383990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46143.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 1383990 is about 1176.4310434530. The cubic root of 1383990 is about 111.4408247068.

The spelling of 1383990 in words is "one million, three hundred eighty-three thousand, nine hundred ninety".