1339402 has 4 divisors (see below), whose sum is σ = 2009106. Its totient is φ = 669700.

The previous prime is 1339399. The next prime is 1339409. The reversal of 1339402 is 2049331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 790321 + 549081 = 889^2 + 741^2 .

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 as a sum of consecutive naturals, namely, 334849 + ... + 334852.

2^1339402 is an apocalyptic number.

1339402 is a deficient number, since it is larger than the sum of its proper divisors (669704).

1339402 is an equidigital number, since it uses as much as digits as its factorization.

1339402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669703.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1339402 is about 1157.3253647959. The cubic root of 1339402 is about 110.2309747218.

The spelling of 1339402 in words is "one million, three hundred thirty-nine thousand, four hundred two".