1347428 has 6 divisors (see below), whose sum is σ = 2358006. Its totient is φ = 673712.

The previous prime is 1347413. The next prime is 1347433. The reversal of 1347428 is 8247431.

It can be written as a sum of positive squares in only one way, i.e., 1304164 + 43264 = 1142^2 + 208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1347428.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168425 + ... + 168432.

It is an arithmetic number, because the mean of its divisors is an integer number (393001).

2^1347428 is an apocalyptic number.

It is an amenable number.

1347428 is a deficient number, since it is larger than the sum of its proper divisors (1010578).

1347428 is a wasteful number, since it uses less digits than its factorization.

1347428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336861 (or 336859 counting only the distinct ones).

The product of its digits is 5376, while the sum is 29.

The square root of 1347428 is about 1160.7876636147. The cubic root of 1347428 is about 110.4507127162.

The spelling of 1347428 in words is "one million, three hundred forty-seven thousand, four hundred twenty-eight".