1028622336 has 96 divisors (see below), whose sum is σ = 3134214720. Its totient is φ = 293879808.

The previous prime is 1028622299. The next prime is 1028622367. The reversal of 1028622336 is 6332268201.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 1028622297 and 1028622306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31050 + ... + 54966.

It is an arithmetic number, because the mean of its divisors is an integer number (32648070).

Almost surely, 2^1028622336 is an apocalyptic number.

1028622336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1028622336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1567107360).

1028622336 is an abundant number, since it is smaller than the sum of its proper divisors (2105592384).

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

1028622336 is an equidigital number, since it uses as much as digits as its factorization.

1028622336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23949 (or 23929 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1028622336 is about 32072.1426786549. The cubic root of 1028622336 is about 1009.4511725956.

The spelling of 1028622336 in words is "one billion, twenty-eight million, six hundred twenty-two thousand, three hundred thirty-six".