3143428 has 6 divisors (see below), whose sum is σ = 5501006. Its totient is φ = 1571712.

The previous prime is 3143411. The next prime is 3143447. The reversal of 3143428 is 8243413.

It can be written as a sum of positive squares in only one way, i.e., 2553604 + 589824 = 1598^2 + 768^2 .

It is a super-2 number, since 2×3143428² = 19762279182368, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 392925 + ... + 392932.

Almost surely, 2^3143428 is an apocalyptic number.

It is an amenable number.

3143428 is a deficient number, since it is larger than the sum of its proper divisors (2357578).

3143428 is a wasteful number, since it uses less digits than its factorization.

3143428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785861 (or 785859 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 3143428 is about 1772.9715169737. The cubic root of 3143428 is about 146.4877041248.

The spelling of 3143428 in words is "three million, one hundred forty-three thousand, four hundred twenty-eight".