1383838 has 4 divisors (see below), whose sum is σ = 2075760. Its totient is φ = 691918.

The previous prime is 1383829. The next prime is 1383853. The reversal of 1383838 is 8383831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8383831 = 73 ⋅114847.

It is a super-2 number, since 2×1383838² = 3830015220488, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345958 + ... + 345961.

It is an arithmetic number, because the mean of its divisors is an integer number (518940).

2^1383838 is an apocalyptic number.

1383838 is a deficient number, since it is larger than the sum of its proper divisors (691922).

1383838 is an equidigital number, since it uses as much as digits as its factorization.

1383838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691921.

The product of its digits is 13824, while the sum is 34.

The square root of 1383838 is about 1176.3664395077. The cubic root of 1383838 is about 111.4367448061.

The spelling of 1383838 in words is "one million, three hundred eighty-three thousand, eight hundred thirty-eight".