1017745140 has 48 divisors (see below), whose sum is σ = 2947956480. Its totient is φ = 262039680.

The previous prime is 1017745139. The next prime is 1017745153. The reversal of 1017745140 is 415477101.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1017745098 and 1017745107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290716 + ... + 294195.

It is an arithmetic number, because the mean of its divisors is an integer number (61415760).

Almost surely, 2^1017745140 is an apocalyptic number.

1017745140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1017745140 is an abundant number, since it is smaller than the sum of its proper divisors (1930211340).

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

1017745140 is a wasteful number, since it uses less digits than its factorization.

1017745140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 584952 (or 584950 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 1017745140 is about 31902.1181114985. The cubic root of 1017745140 is about 1005.8803997854.

The spelling of 1017745140 in words is "one billion, seventeen million, seven hundred forty-five thousand, one hundred forty".