1228702426 has 8 divisors (see below), whose sum is σ = 2106347040. Its totient is φ = 526586748.

The previous prime is 1228702417. The next prime is 1228702451. The reversal of 1228702426 is 6242078221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1228702391 and 1228702400.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43882216 + ... + 43882243.

It is an arithmetic number, because the mean of its divisors is an integer number (263293380).

Almost surely, 2^1228702426 is an apocalyptic number.

1228702426 is a deficient number, since it is larger than the sum of its proper divisors (877644614).

1228702426 is an equidigital number, since it uses as much as digits as its factorization.

1228702426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87764468.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 1228702426 is about 35052.8518953879. The cubic root of 1228702426 is about 1071.0643690118.

The spelling of 1228702426 in words is "one billion, two hundred twenty-eight million, seven hundred two thousand, four hundred twenty-six".