1339401 has 8 divisors (see below), whose sum is σ = 2041024. Its totient is φ = 765360.

The previous prime is 1339399. The next prime is 1339409. The reversal of 1339401 is 1049331.

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

It is not a de Polignac number, because 1339401 - 2¹ = 1339399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 63781 = 1339401 / (1 + 3 + 3 + 9 + 4 + 0 + 1).

It is an Ulam number.

It is a Duffinian number.

1339401 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1339409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31870 + ... + 31911.

It is an arithmetic number, because the mean of its divisors is an integer number (255128).

2^1339401 is an apocalyptic number.

It is an amenable number.

1339401 is a deficient number, since it is larger than the sum of its proper divisors (701623).

1339401 is an equidigital number, since it uses as much as digits as its factorization.

1339401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63791.

The product of its (nonzero) digits is 324, while the sum is 21.

The square root of 1339401 is about 1157.3249327652. The cubic root of 1339401 is about 110.2309472889.

The spelling of 1339401 in words is "one million, three hundred thirty-nine thousand, four hundred one".