1339472 has 10 divisors (see below), whose sum is σ = 2595258. Its totient is φ = 669728.

The previous prime is 1339463. The next prime is 1339487. The reversal of 1339472 is 2749331.

It can be written as a sum of positive squares in only one way, i.e., 1336336 + 3136 = 1156^2 + 56^2 .

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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, 41843 + ... + 41874.

2^1339472 is an apocalyptic number.

It is an amenable number.

1339472 is a deficient number, since it is larger than the sum of its proper divisors (1255786).

1339472 is an equidigital number, since it uses as much as digits as its factorization.

1339472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83725 (or 83719 counting only the distinct ones).

The product of its digits is 4536, while the sum is 29.

The square root of 1339472 is about 1157.3556065445. The cubic root of 1339472 is about 110.2328949902.

The spelling of 1339472 in words is "one million, three hundred thirty-nine thousand, four hundred seventy-two".