1017578040 has 32 divisors (see below), whose sum is σ = 3052734480. Its totient is φ = 271354112.

The previous prime is 1017578021. The next prime is 1017578047. The reversal of 1017578040 is 408757101.

It is a junction number, because it is equal to n+sod(n) for n = 1017577992 and 1017578010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1017578047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4239789 + ... + 4240028.

Almost surely, 2^1017578040 is an apocalyptic number.

1017578040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1017578040 is an abundant number, since it is smaller than the sum of its proper divisors (2035156440).

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

1017578040 is a wasteful number, since it uses less digits than its factorization.

1017578040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8479831 (or 8479827 counting only the distinct ones).

The product of its (nonzero) digits is 7840, while the sum is 33.

The square root of 1017578040 is about 31899.4990556278. The cubic root of 1017578040 is about 1005.8253461156.

The spelling of 1017578040 in words is "one billion, seventeen million, five hundred seventy-eight thousand, forty".