1017628620 has 48 divisors (see below), whose sum is σ = 2903130720. Its totient is φ = 266246656.

The previous prime is 1017628613. The next prime is 1017628639. The reversal of 1017628620 is 268267101.

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, 156825 + ... + 163184.

It is an arithmetic number, because the mean of its divisors is an integer number (60481890).

Almost surely, 2^1017628620 is an apocalyptic number.

1017628620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1017628620 is an abundant number, since it is smaller than the sum of its proper divisors (1885502100).

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

1017628620 is a wasteful number, since it uses less digits than its factorization.

1017628620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320074 (or 320072 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 1017628620 is about 31900.2918481947. The cubic root of 1017628620 is about 1005.8420111120.

The spelling of 1017628620 in words is "one billion, seventeen million, six hundred twenty-eight thousand, six hundred twenty".