1384090 has 16 divisors (see below), whose sum is σ = 2533320. Its totient is φ = 544320.

The previous prime is 1384087. The next prime is 1384091. The reversal of 1384090 is 904831.

It can be written as a sum of positive squares in 4 ways, for example, as 337561 + 1046529 = 581^2 + 1023^2 .

It is not an unprimeable number, because it can be changed into a prime (1384091) by changing a digit.

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, 525 + ... + 1744.

2^1384090 is an apocalyptic number.

1384090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1384090 is a deficient number, since it is larger than the sum of its proper divisors (1149230).

1384090 is a wasteful number, since it uses less digits than its factorization.

1384090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 1384090 is about 1176.4735441139. The cubic root of 1384090 is about 111.4435086891.

The spelling of 1384090 in words is "one million, three hundred eighty-four thousand, ninety".