428254070842 has 32 divisors (see below), whose sum is σ = 699473653200. Its totient is φ = 195469639680.

The previous prime is 428254070821. The next prime is 428254070947. The reversal of 428254070842 is 248070452824.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 53574194521 + 374679876321 = 231461^2 + 612111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 428254070792 and 428254070801.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156842 + ... + 1481482.

Almost surely, 2^428254070842 is an apocalyptic number.

428254070842 is a deficient number, since it is larger than the sum of its proper divisors (271219582358).

428254070842 is a wasteful number, since it uses less digits than its factorization.

428254070842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325218.

The product of its (nonzero) digits is 1146880, while the sum is 46.

The spelling of 428254070842 in words is "four hundred twenty-eight billion, two hundred fifty-four million, seventy thousand, eight hundred forty-two".