8430428 has 6 divisors (see below), whose sum is σ = 14753256. Its totient is φ = 4215212.

The previous prime is 8430427. The next prime is 8430439. The reversal of 8430428 is 8240348.

It is a self number, because there is not a number n which added to its sum of digits gives 8430428.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8430427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1053800 + ... + 1053807.

It is an arithmetic number, because the mean of its divisors is an integer number (2458876).

Almost surely, 2^8430428 is an apocalyptic number.

It is an amenable number.

8430428 is a deficient number, since it is larger than the sum of its proper divisors (6322828).

8430428 is a wasteful number, since it uses less digits than its factorization.

8430428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2107611 (or 2107609 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 29.

The square root of 8430428 is about 2903.5199327713. The cubic root of 8430428 is about 203.5244272384.

The spelling of 8430428 in words is "eight million, four hundred thirty thousand, four hundred twenty-eight".