1235428 has 6 divisors (see below), whose sum is σ = 2162006. Its totient is φ = 617712.

The previous prime is 1235419. The next prime is 1235431. The reversal of 1235428 is 8245321.

It can be written as a sum of positive squares in only one way, i.e., 1127844 + 107584 = 1062^2 + 328^2 .

It is a plaindrome in base 7.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 154425 + ... + 154432.

2^1235428 is an apocalyptic number.

It is an amenable number.

1235428 is a deficient number, since it is larger than the sum of its proper divisors (926578).

1235428 is a wasteful number, since it uses less digits than its factorization.

1235428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308861 (or 308859 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 1235428 is about 1111.4980881675. The cubic root of 1235428 is about 107.3015049932.

The spelling of 1235428 in words is "one million, two hundred thirty-five thousand, four hundred twenty-eight".