1028622814 has 4 divisors (see below), whose sum is σ = 1542934224. Its totient is φ = 514311406.

The previous prime is 1028622799. The next prime is 1028622821. The reversal of 1028622814 is 4182268201.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1028622814.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 257155702 + ... + 257155705.

It is an arithmetic number, because the mean of its divisors is an integer number (385733556).

Almost surely, 2^1028622814 is an apocalyptic number.

1028622814 is a deficient number, since it is larger than the sum of its proper divisors (514311410).

1028622814 is an equidigital number, since it uses as much as digits as its factorization.

1028622814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 514311409.

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 1028622814 is about 32072.1501306040. The cubic root of 1028622814 is about 1009.4513289593.

The spelling of 1028622814 in words is "one billion, twenty-eight million, six hundred twenty-two thousand, eight hundred fourteen".