1383431 has 8 divisors (see below), whose sum is σ = 1589280. Its totient is φ = 1179648.

The previous prime is 1383401. The next prime is 1383433. The reversal of 1383431 is 1343831.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1383431 - 2⁶ = 1383367 is a prime.

It is a super-4 number, since 4×1383431⁴ (a number of 26 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 1383397 and 1383406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415 + ... + 2183.

It is an arithmetic number, because the mean of its divisors is an integer number (198660).

2^1383431 is an apocalyptic number.

1383431 is a deficient number, since it is larger than the sum of its proper divisors (205849).

1383431 is an equidigital number, since it uses as much as digits as its factorization.

1383431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033.

The product of its digits is 864, while the sum is 23.

The square root of 1383431 is about 1176.1934364721. The cubic root of 1383431 is about 111.4258188638.

The spelling of 1383431 in words is "one million, three hundred eighty-three thousand, four hundred thirty-one".