1017342640 has 20 divisors (see below), whose sum is σ = 2365321824. Its totient is φ = 406937024.

The previous prime is 1017342617. The next prime is 1017342659. The reversal of 1017342640 is 462437101.

1017342640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 1017342599 and 1017342608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6358312 + ... + 6358471.

Almost surely, 2^1017342640 is an apocalyptic number.

1017342640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1017342640 is an abundant number, since it is smaller than the sum of its proper divisors (1347979184).

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

1017342640 is a wasteful number, since it uses less digits than its factorization.

1017342640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12716796 (or 12716790 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 1017342640 is about 31895.8091291003. The cubic root of 1017342640 is about 1005.7477797317.

Adding to 1017342640 its reverse (462437101), we get a palindrome (1479779741).

The spelling of 1017342640 in words is "one billion, seventeen million, three hundred forty-two thousand, six hundred forty".