1355428 has 6 divisors (see below), whose sum is σ = 2372006. Its totient is φ = 677712.

The previous prime is 1355423. The next prime is 1355429. The reversal of 1355428 is 8245531.

It can be written as a sum of positive squares in only one way, i.e., 1350244 + 5184 = 1162^2 + 72^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1355396 and 1355405.

It is not an unprimeable number, because it can be changed into a prime (1355423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169425 + ... + 169432.

2^1355428 is an apocalyptic number.

It is an amenable number.

1355428 is a deficient number, since it is larger than the sum of its proper divisors (1016578).

1355428 is a wasteful number, since it uses less digits than its factorization.

1355428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338861 (or 338859 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 1355428 is about 1164.2284999088. The cubic root of 1355428 is about 110.6688722323.

The spelling of 1355428 in words is "one million, three hundred fifty-five thousand, four hundred twenty-eight".