7043428 has 24 divisors (see below), whose sum is σ = 14700672. Its totient is φ = 2887104.

The previous prime is 7043411. The next prime is 7043441. The reversal of 7043428 is 8243407.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 7043396 and 7043405.

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 in 7 ways as a sum of consecutive naturals, for example, 4825 + ... + 6112.

It is an arithmetic number, because the mean of its divisors is an integer number (612528).

Almost surely, 2^7043428 is an apocalyptic number.

It is an amenable number.

7043428 is an abundant number, since it is smaller than the sum of its proper divisors (7657244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7043428 is a wasteful number, since it uses less digits than its factorization.

7043428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10971 (or 10969 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 7043428 is about 2653.9457417212. The cubic root of 7043428 is about 191.6878971652.

The spelling of 7043428 in words is "seven million, forty-three thousand, four hundred twenty-eight".